Finding the Fourth Proportional to 1,003,923.87, 1,385,405.15 and 545,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003,923.87 : 1,385,405.15 = 545,028.50 : x
2. Step 2: Convert to fraction form
   1,003,923.87/1,385,405.15 = 545,028.50/x
3. Step 3: Cross multiply
   1,003,923.87x = 1,385,405.15 × 545,028.50
4. Step 4: Simplify right side
   1,003,923.87x = 755,085,281,144.61
5. Step 5: Solve for x
   x = 755,085,281,144.61/1,003,923.87
6. Step 6: Final answer
   x = 752,134.01