Finding the Fourth Proportional to 941,499.58, 1,299,329.78 and 528,075.18

Step by Step Solution

1. Step 1: Write the proportion equation
   941,499.58 : 1,299,329.78 = 528,075.18 : x
2. Step 2: Convert to fraction form
   941,499.58/1,299,329.78 = 528,075.18/x
3. Step 3: Cross multiply
   941,499.58x = 1,299,329.78 × 528,075.18
4. Step 4: Simplify right side
   941,499.58x = 686,143,807,452.86
5. Step 5: Solve for x
   x = 686,143,807,452.86/941,499.58
6. Step 6: Final answer
   x = 728,777.60