Finding the Fourth Proportional to 2,499.17, 3,449.86 and 1,505.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.17 : 3,449.86 = 1,505.30 : x
2. Step 2: Convert to fraction form
   2,499.17/3,449.86 = 1,505.30/x
3. Step 3: Cross multiply
   2,499.17x = 3,449.86 × 1,505.30
4. Step 4: Simplify right side
   2,499.17x = 5,193,074.26
5. Step 5: Solve for x
   x = 5,193,074.26/2,499.17
6. Step 6: Final answer
   x = 2,077.92