Finding the Fourth Proportional to 1,196,789.55, 1,651,561.73 and 680,543.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196,789.55 : 1,651,561.73 = 680,543.53 : x
2. Step 2: Convert to fraction form
   1,196,789.55/1,651,561.73 = 680,543.53/x
3. Step 3: Cross multiply
   1,196,789.55x = 1,651,561.73 × 680,543.53
4. Step 4: Simplify right side
   1,196,789.55x = 1,123,959,649,747.11
5. Step 5: Solve for x
   x = 1,123,959,649,747.11/1,196,789.55
6. Step 6: Final answer
   x = 939,145.61