Finding the Fourth Proportional to 2,579,789.52, 3,869,672.04 and 660,696.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579,789.52 : 3,869,672.04 = 660,696.96 : x
2. Step 2: Convert to fraction form
   2,579,789.52/3,869,672.04 = 660,696.96/x
3. Step 3: Cross multiply
   2,579,789.52x = 3,869,672.04 × 660,696.96
4. Step 4: Simplify right side
   2,579,789.52x = 2,556,680,553,025.00
5. Step 5: Solve for x
   x = 2,556,680,553,025.00/2,579,789.52
6. Step 6: Final answer
   x = 991,042.31