Finding the Fourth Proportional to 2,337.81, 3,505.80 and 876.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,337.81 : 3,505.80 = 876.15 : x
2. Step 2: Convert to fraction form
   2,337.81/3,505.80 = 876.15/x
3. Step 3: Cross multiply
   2,337.81x = 3,505.80 × 876.15
4. Step 4: Simplify right side
   2,337.81x = 3,071,606.67
5. Step 5: Solve for x
   x = 3,071,606.67/2,337.81
6. Step 6: Final answer
   x = 1,313.88