Finding the Fourth Proportional to 2,499.53, 3,445.49 and 1,869.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.53 : 3,445.49 = 1,869.10 : x
2. Step 2: Convert to fraction form
   2,499.53/3,445.49 = 1,869.10/x
3. Step 3: Cross multiply
   2,499.53x = 3,445.49 × 1,869.10
4. Step 4: Simplify right side
   2,499.53x = 6,439,961.42
5. Step 5: Solve for x
   x = 6,439,961.42/2,499.53
6. Step 6: Final answer
   x = 2,576.47