Finding the Fourth Proportional to 1,218,626.72, 1,681,703.52 and 682,082.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,626.72 : 1,681,703.52 = 682,082.72 : x
2. Step 2: Convert to fraction form
   1,218,626.72/1,681,703.52 = 682,082.72/x
3. Step 3: Cross multiply
   1,218,626.72x = 1,681,703.52 × 682,082.72
4. Step 4: Simplify right side
   1,218,626.72x = 1,147,060,911,155.17
5. Step 5: Solve for x
   x = 1,147,060,911,155.17/1,218,626.72
6. Step 6: Final answer
   x = 941,273.40