Finding the Fourth Proportional to 1,171,587.25, 1,616,139.76 and 681,501.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171,587.25 : 1,616,139.76 = 681,501.57 : x
2. Step 2: Convert to fraction form
   1,171,587.25/1,616,139.76 = 681,501.57/x
3. Step 3: Cross multiply
   1,171,587.25x = 1,616,139.76 × 681,501.57
4. Step 4: Simplify right side
   1,171,587.25x = 1,101,401,783,779.42
5. Step 5: Solve for x
   x = 1,101,401,783,779.42/1,171,587.25
6. Step 6: Final answer
   x = 940,093.69