Finding the Fourth Proportional to 1,152,158.48, 1,729,119.84 and 521,515.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,158.48 : 1,729,119.84 = 521,515.16 : x
2. Step 2: Convert to fraction form
   1,152,158.48/1,729,119.84 = 521,515.16/x
3. Step 3: Cross multiply
   1,152,158.48x = 1,729,119.84 × 521,515.16
4. Step 4: Simplify right side
   1,152,158.48x = 901,762,210,016.77
5. Step 5: Solve for x
   x = 901,762,210,016.77/1,152,158.48
6. Step 6: Final answer
   x = 782,672.02