Finding the Fourth Proportional to 1,093.92, 1,507.86 and 872.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.92 : 1,507.86 = 872.82 : x
2. Step 2: Convert to fraction form
   1,093.92/1,507.86 = 872.82/x
3. Step 3: Cross multiply
   1,093.92x = 1,507.86 × 872.82
4. Step 4: Simplify right side
   1,093.92x = 1,316,090.37
5. Step 5: Solve for x
   x = 1,316,090.37/1,093.92
6. Step 6: Final answer
   x = 1,203.10