Finding the Fourth Proportional to 5,007.31, 7,510.89 and 1,675.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,007.31 : 7,510.89 = 1,675.78 : x
2. Step 2: Convert to fraction form
   5,007.31/7,510.89 = 1,675.78/x
3. Step 3: Cross multiply
   5,007.31x = 7,510.89 × 1,675.78
4. Step 4: Simplify right side
   5,007.31x = 12,586,599.24
5. Step 5: Solve for x
   x = 12,586,599.24/5,007.31
6. Step 6: Final answer
   x = 2,513.64