Finding the Fourth Proportional to 1,513.69, 2,087.96 and 924.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.69 : 2,087.96 = 924.57 : x
2. Step 2: Convert to fraction form
   1,513.69/2,087.96 = 924.57/x
3. Step 3: Cross multiply
   1,513.69x = 2,087.96 × 924.57
4. Step 4: Simplify right side
   1,513.69x = 1,930,460.55
5. Step 5: Solve for x
   x = 1,930,460.55/1,513.69
6. Step 6: Final answer
   x = 1,275.34