Finding the Fourth Proportional to 1,093,253.10, 1,509,391.71 and 685,913.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093,253.10 : 1,509,391.71 = 685,913.82 : x
2. Step 2: Convert to fraction form
   1,093,253.10/1,509,391.71 = 685,913.82/x
3. Step 3: Cross multiply
   1,093,253.10x = 1,509,391.71 × 685,913.82
4. Step 4: Simplify right side
   1,093,253.10x = 1,035,312,633,682.43
5. Step 5: Solve for x
   x = 1,035,312,633,682.43/1,093,253.10
6. Step 6: Final answer
   x = 947,001.78