Finding the Fourth Proportional to 1,666.52, 2,300.48 and 1,137.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.52 : 2,300.48 = 1,137.15 : x
2. Step 2: Convert to fraction form
   1,666.52/2,300.48 = 1,137.15/x
3. Step 3: Cross multiply
   1,666.52x = 2,300.48 × 1,137.15
4. Step 4: Simplify right side
   1,666.52x = 2,615,973.64
5. Step 5: Solve for x
   x = 2,615,973.64/1,666.52
6. Step 6: Final answer
   x = 1,569.73