Finding the Fourth Proportional to 1,606.50, 2,411.37 and 876.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.50 : 2,411.37 = 876.69 : x
2. Step 2: Convert to fraction form
   1,606.50/2,411.37 = 876.69/x
3. Step 3: Cross multiply
   1,606.50x = 2,411.37 × 876.69
4. Step 4: Simplify right side
   1,606.50x = 2,114,023.97
5. Step 5: Solve for x
   x = 2,114,023.97/1,606.50
6. Step 6: Final answer
   x = 1,315.92