Finding the Fourth Proportional to 1,671.98, 2,306.19 and 1,147.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671.98 : 2,306.19 = 1,147.10 : x
2. Step 2: Convert to fraction form
   1,671.98/2,306.19 = 1,147.10/x
3. Step 3: Cross multiply
   1,671.98x = 2,306.19 × 1,147.10
4. Step 4: Simplify right side
   1,671.98x = 2,645,436.31
5. Step 5: Solve for x
   x = 2,645,436.31/1,671.98
6. Step 6: Final answer
   x = 1,582.22