Finding the Fourth Proportional to 2,516.67, 3,472.50 and 1,439.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.67 : 3,472.50 = 1,439.82 : x
2. Step 2: Convert to fraction form
   2,516.67/3,472.50 = 1,439.82/x
3. Step 3: Cross multiply
   2,516.67x = 3,472.50 × 1,439.82
4. Step 4: Simplify right side
   2,516.67x = 4,999,774.95
5. Step 5: Solve for x
   x = 4,999,774.95/2,516.67
6. Step 6: Final answer
   x = 1,986.66