Finding the Fourth Proportional to 1,155,162.21, 1,732,792.50 and 356,426.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,162.21 : 1,732,792.50 = 356,426.07 : x
2. Step 2: Convert to fraction form
   1,155,162.21/1,732,792.50 = 356,426.07/x
3. Step 3: Cross multiply
   1,155,162.21x = 1,732,792.50 × 356,426.07
4. Step 4: Simplify right side
   1,155,162.21x = 617,612,420,900.48
5. Step 5: Solve for x
   x = 617,612,420,900.48/1,155,162.21
6. Step 6: Final answer
   x = 534,654.28