Finding the Fourth Proportional to 1,488,870,840.84, 2,233,309,060.56 and 614,513,139.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488,870,840.84 : 2,233,309,060.56 = 614,513,139.72 : x
2. Step 2: Convert to fraction form
   1,488,870,840.84/2,233,309,060.56 = 614,513,139.72/x
3. Step 3: Cross multiply
   1,488,870,840.84x = 2,233,309,060.56 × 614,513,139.72
4. Step 4: Simplify right side
   1,488,870,840.84x = 1,372,397,762,769,849,344
5. Step 5: Solve for x
   x = 1,372,397,762,769,849,344/1,488,870,840.84
6. Step 6: Final answer
   x = 921,770,864.96