Finding the Fourth Proportional to 3,609,630.72, 4,981,291.20 and 2,159,386.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,609,630.72 : 4,981,291.20 = 2,159,386.56 : x
2. Step 2: Convert to fraction form
   3,609,630.72/4,981,291.20 = 2,159,386.56/x
3. Step 3: Cross multiply
   3,609,630.72x = 4,981,291.20 × 2,159,386.56
4. Step 4: Simplify right side
   3,609,630.72x = 10,756,533,268,726.27
5. Step 5: Solve for x
   x = 10,756,533,268,726.27/3,609,630.72
6. Step 6: Final answer
   x = 2,979,953.94