Finding the Fourth Proportional to 1,060,624.18, 1,591,085.72 and 340,724.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060,624.18 : 1,591,085.72 = 340,724.49 : x
2. Step 2: Convert to fraction form
   1,060,624.18/1,591,085.72 = 340,724.49/x
3. Step 3: Cross multiply
   1,060,624.18x = 1,591,085.72 × 340,724.49
4. Step 4: Simplify right side
   1,060,624.18x = 542,121,870,493.28
5. Step 5: Solve for x
   x = 542,121,870,493.28/1,060,624.18
6. Step 6: Final answer
   x = 511,134.75