Finding the Fourth Proportional to 1,108.71, 1,531.58 and 799.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.71 : 1,531.58 = 799.83 : x
2. Step 2: Convert to fraction form
   1,108.71/1,531.58 = 799.83/x
3. Step 3: Cross multiply
   1,108.71x = 1,531.58 × 799.83
4. Step 4: Simplify right side
   1,108.71x = 1,224,999.63
5. Step 5: Solve for x
   x = 1,224,999.63/1,108.71
6. Step 6: Final answer
   x = 1,104.89