Finding the Fourth Proportional to 1,104.94, 1,655.86 and 872.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.94 : 1,655.86 = 872.81 : x
2. Step 2: Convert to fraction form
   1,104.94/1,655.86 = 872.81/x
3. Step 3: Cross multiply
   1,104.94x = 1,655.86 × 872.81
4. Step 4: Simplify right side
   1,104.94x = 1,445,251.17
5. Step 5: Solve for x
   x = 1,445,251.17/1,104.94
6. Step 6: Final answer
   x = 1,307.99