Finding the Fourth Proportional to 2,092,663.89, 2,887,687.85 and 1,221,574.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092,663.89 : 2,887,687.85 = 1,221,574.18 : x
2. Step 2: Convert to fraction form
   2,092,663.89/2,887,687.85 = 1,221,574.18/x
3. Step 3: Cross multiply
   2,092,663.89x = 2,887,687.85 × 1,221,574.18
4. Step 4: Simplify right side
   2,092,663.89x = 3,527,524,917,459.71
5. Step 5: Solve for x
   x = 3,527,524,917,459.71/2,092,663.89
6. Step 6: Final answer
   x = 1,685,662.44