Finding the Fourth Proportional to 1,015,311.18, 1,400,758.72 and 607,424.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,311.18 : 1,400,758.72 = 607,424.74 : x
2. Step 2: Convert to fraction form
   1,015,311.18/1,400,758.72 = 607,424.74/x
3. Step 3: Cross multiply
   1,015,311.18x = 1,400,758.72 × 607,424.74
4. Step 4: Simplify right side
   1,015,311.18x = 850,855,501,298.73
5. Step 5: Solve for x
   x = 850,855,501,298.73/1,015,311.18
6. Step 6: Final answer
   x = 838,024.36