Finding the Fourth Proportional to 1,517.76, 2,090.52 and 1,307.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.76 : 2,090.52 = 1,307.52 : x
2. Step 2: Convert to fraction form
   1,517.76/2,090.52 = 1,307.52/x
3. Step 3: Cross multiply
   1,517.76x = 2,090.52 × 1,307.52
4. Step 4: Simplify right side
   1,517.76x = 2,733,396.71
5. Step 5: Solve for x
   x = 2,733,396.71/1,517.76
6. Step 6: Final answer
   x = 1,800.94