Finding the Fourth Proportional to 2,336.91, 3,506.31 and 876.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,336.91 : 3,506.31 = 876.21 : x
2. Step 2: Convert to fraction form
   2,336.91/3,506.31 = 876.21/x
3. Step 3: Cross multiply
   2,336.91x = 3,506.31 × 876.21
4. Step 4: Simplify right side
   2,336.91x = 3,072,263.89
5. Step 5: Solve for x
   x = 3,072,263.89/2,336.91
6. Step 6: Final answer
   x = 1,314.67