Finding the Fourth Proportional to 2,631.41, 3,947.33 and 876.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.41 : 3,947.33 = 876.35 : x
2. Step 2: Convert to fraction form
   2,631.41/3,947.33 = 876.35/x
3. Step 3: Cross multiply
   2,631.41x = 3,947.33 × 876.35
4. Step 4: Simplify right side
   2,631.41x = 3,459,238.26
5. Step 5: Solve for x
   x = 3,459,238.26/2,631.41
6. Step 6: Final answer
   x = 1,314.59