Finding the Fourth Proportional to 2,513.76, 3,771.18 and 782.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.76 : 3,771.18 = 782.52 : x
2. Step 2: Convert to fraction form
   2,513.76/3,771.18 = 782.52/x
3. Step 3: Cross multiply
   2,513.76x = 3,771.18 × 782.52
4. Step 4: Simplify right side
   2,513.76x = 2,951,023.77
5. Step 5: Solve for x
   x = 2,951,023.77/2,513.76
6. Step 6: Final answer
   x = 1,173.95