Finding the Fourth Proportional to 1,079,920.72, 1,490,306.34 and 627,211.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079,920.72 : 1,490,306.34 = 627,211.72 : x
2. Step 2: Convert to fraction form
   1,079,920.72/1,490,306.34 = 627,211.72/x
3. Step 3: Cross multiply
   1,079,920.72x = 1,490,306.34 × 627,211.72
4. Step 4: Simplify right side
   1,079,920.72x = 934,737,602,838.31
5. Step 5: Solve for x
   x = 934,737,602,838.31/1,079,920.72
6. Step 6: Final answer
   x = 865,561.32