Finding the Fourth Proportional to 3,499.20, 5,250.42 and 1,551.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499.20 : 5,250.42 = 1,551.15 : x
2. Step 2: Convert to fraction form
   3,499.20/5,250.42 = 1,551.15/x
3. Step 3: Cross multiply
   3,499.20x = 5,250.42 × 1,551.15
4. Step 4: Simplify right side
   3,499.20x = 8,144,188.98
5. Step 5: Solve for x
   x = 8,144,188.98/3,499.20
6. Step 6: Final answer
   x = 2,327.44