Finding the Fourth Proportional to 1,026,211.71, 1,538,665.54 and 900,105.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,026,211.71 : 1,538,665.54 = 900,105.18 : x
2. Step 2: Convert to fraction form
   1,026,211.71/1,538,665.54 = 900,105.18/x
3. Step 3: Cross multiply
   1,026,211.71x = 1,538,665.54 × 900,105.18
4. Step 4: Simplify right side
   1,026,211.71x = 1,384,960,822,841.50
5. Step 5: Solve for x
   x = 1,384,960,822,841.50/1,026,211.71
6. Step 6: Final answer
   x = 1,349,585.87