Finding the Fourth Proportional to 2,139,738.93, 2,952,826.35 and 1,172,909.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,738.93 : 2,952,826.35 = 1,172,909.97 : x
2. Step 2: Convert to fraction form
   2,139,738.93/2,952,826.35 = 1,172,909.97/x
3. Step 3: Cross multiply
   2,139,738.93x = 2,952,826.35 × 1,172,909.97
4. Step 4: Simplify right side
   2,139,738.93x = 3,463,399,461,195.30
5. Step 5: Solve for x
   x = 3,463,399,461,195.30/2,139,738.93
6. Step 6: Final answer
   x = 1,618,608.43