Finding the Fourth Proportional to 2,071,043.91, 3,105,121.53 and 917,663.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071,043.91 : 3,105,121.53 = 917,663.18 : x
2. Step 2: Convert to fraction form
   2,071,043.91/3,105,121.53 = 917,663.18/x
3. Step 3: Cross multiply
   2,071,043.91x = 3,105,121.53 × 917,663.18
4. Step 4: Simplify right side
   2,071,043.91x = 2,849,455,685,421.89
5. Step 5: Solve for x
   x = 2,849,455,685,421.89/2,071,043.91
6. Step 6: Final answer
   x = 1,375,854.79