Finding the Fourth Proportional to 2,139,337.47, 2,952,308.34 and 1,172,446.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,337.47 : 2,952,308.34 = 1,172,446.56 : x
2. Step 2: Convert to fraction form
   2,139,337.47/2,952,308.34 = 1,172,446.56/x
3. Step 3: Cross multiply
   2,139,337.47x = 2,952,308.34 × 1,172,446.56
4. Step 4: Simplify right side
   2,139,337.47x = 3,461,423,757,292.31
5. Step 5: Solve for x
   x = 3,461,423,757,292.31/2,139,337.47
6. Step 6: Final answer
   x = 1,617,988.66