Finding the Fourth Proportional to 2,139,451.79, 2,952,309.67 and 1,172,513.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,451.79 : 2,952,309.67 = 1,172,513.48 : x
2. Step 2: Convert to fraction form
   2,139,451.79/2,952,309.67 = 1,172,513.48/x
3. Step 3: Cross multiply
   2,139,451.79x = 2,952,309.67 × 1,172,513.48
4. Step 4: Simplify right side
   2,139,451.79x = 3,461,622,867,516.52
5. Step 5: Solve for x
   x = 3,461,622,867,516.52/2,139,451.79
6. Step 6: Final answer
   x = 1,617,995.27