Finding the Fourth Proportional to 2,140,588.42, 3,210,571.29 and 623,864.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,588.42 : 3,210,571.29 = 623,864.20 : x
2. Step 2: Convert to fraction form
   2,140,588.42/3,210,571.29 = 623,864.20/x
3. Step 3: Cross multiply
   2,140,588.42x = 3,210,571.29 × 623,864.20
4. Step 4: Simplify right side
   2,140,588.42x = 2,002,960,489,378.82
5. Step 5: Solve for x
   x = 2,002,960,489,378.82/2,140,588.42
6. Step 6: Final answer
   x = 935,705.56