Finding the Fourth Proportional to 2,445.90, 3,666.69 and 1,147.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.90 : 3,666.69 = 1,147.02 : x
2. Step 2: Convert to fraction form
   2,445.90/3,666.69 = 1,147.02/x
3. Step 3: Cross multiply
   2,445.90x = 3,666.69 × 1,147.02
4. Step 4: Simplify right side
   2,445.90x = 4,205,766.76
5. Step 5: Solve for x
   x = 4,205,766.76/2,445.90
6. Step 6: Final answer
   x = 1,719.52