Finding the Fourth Proportional to 1,093.96, 1,636.89 and 876.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.96 : 1,636.89 = 876.88 : x
2. Step 2: Convert to fraction form
   1,093.96/1,636.89 = 876.88/x
3. Step 3: Cross multiply
   1,093.96x = 1,636.89 × 876.88
4. Step 4: Simplify right side
   1,093.96x = 1,435,356.10
5. Step 5: Solve for x
   x = 1,435,356.10/1,093.96
6. Step 6: Final answer
   x = 1,312.07