Finding the Fourth Proportional to 2,138,927.31, 2,951,668.76 and 1,172,010.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,927.31 : 2,951,668.76 = 1,172,010.87 : x
2. Step 2: Convert to fraction form
   2,138,927.31/2,951,668.76 = 1,172,010.87/x
3. Step 3: Cross multiply
   2,138,927.31x = 2,951,668.76 × 1,172,010.87
4. Step 4: Simplify right side
   2,138,927.31x = 3,459,387,865,499.37
5. Step 5: Solve for x
   x = 3,459,387,865,499.37/2,138,927.31
6. Step 6: Final answer
   x = 1,617,347.09