Finding the Fourth Proportional to 1,058,443.61, 1,585,598.49 and 845,654.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058,443.61 : 1,585,598.49 = 845,654.18 : x
2. Step 2: Convert to fraction form
   1,058,443.61/1,585,598.49 = 845,654.18/x
3. Step 3: Cross multiply
   1,058,443.61x = 1,585,598.49 × 845,654.18
4. Step 4: Simplify right side
   1,058,443.61x = 1,340,867,982,942.20
5. Step 5: Solve for x
   x = 1,340,867,982,942.20/1,058,443.61
6. Step 6: Final answer
   x = 1,266,829.88