Finding the Fourth Proportional to 2,725.86, 4,088.94 and 876.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725.86 : 4,088.94 = 876.84 : x
2. Step 2: Convert to fraction form
   2,725.86/4,088.94 = 876.84/x
3. Step 3: Cross multiply
   2,725.86x = 4,088.94 × 876.84
4. Step 4: Simplify right side
   2,725.86x = 3,585,346.15
5. Step 5: Solve for x
   x = 3,585,346.15/2,725.86
6. Step 6: Final answer
   x = 1,315.31