Finding the Fourth Proportional to 3,520.96, 5,279.28 and 2,598.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,520.96 : 5,279.28 = 2,598.76 : x
2. Step 2: Convert to fraction form
   3,520.96/5,279.28 = 2,598.76/x
3. Step 3: Cross multiply
   3,520.96x = 5,279.28 × 2,598.76
4. Step 4: Simplify right side
   3,520.96x = 13,719,581.69
5. Step 5: Solve for x
   x = 13,719,581.69/3,520.96
6. Step 6: Final answer
   x = 3,896.55