Finding the Fourth Proportional to 2,886.30, 4,326.72 and 2,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.30 : 4,326.72 = 2,629.50 : x
2. Step 2: Convert to fraction form
   2,886.30/4,326.72 = 2,629.50/x
3. Step 3: Cross multiply
   2,886.30x = 4,326.72 × 2,629.50
4. Step 4: Simplify right side
   2,886.30x = 11,377,084.15
5. Step 5: Solve for x
   x = 11,377,084.15/2,886.30
6. Step 6: Final answer
   x = 3,941.75