Finding the Fourth Proportional to 3,768.15, 5,200.29 and 2,587.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.15 : 5,200.29 = 2,587.17 : x
2. Step 2: Convert to fraction form
   3,768.15/5,200.29 = 2,587.17/x
3. Step 3: Cross multiply
   3,768.15x = 5,200.29 × 2,587.17
4. Step 4: Simplify right side
   3,768.15x = 13,454,034.28
5. Step 5: Solve for x
   x = 13,454,034.28/3,768.15
6. Step 6: Final answer
   x = 3,570.46