Finding the Fourth Proportional to 2,499.53, 3,450.66 and 1,615.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.53 : 3,450.66 = 1,615.83 : x
2. Step 2: Convert to fraction form
   2,499.53/3,450.66 = 1,615.83/x
3. Step 3: Cross multiply
   2,499.53x = 3,450.66 × 1,615.83
4. Step 4: Simplify right side
   2,499.53x = 5,575,679.95
5. Step 5: Solve for x
   x = 5,575,679.95/2,499.53
6. Step 6: Final answer
   x = 2,230.70