Finding the Fourth Proportional to 1,439,061.07, 2,158,561.97 and 479,586.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,061.07 : 2,158,561.97 = 479,586.34 : x
2. Step 2: Convert to fraction form
   1,439,061.07/2,158,561.97 = 479,586.34/x
3. Step 3: Cross multiply
   1,439,061.07x = 2,158,561.97 × 479,586.34
4. Step 4: Simplify right side
   1,439,061.07x = 1,035,216,827,061.15
5. Step 5: Solve for x
   x = 1,035,216,827,061.15/1,439,061.07
6. Step 6: Final answer
   x = 719,369.63