Finding the Fourth Proportional to 1,152.90, 1,591.65 and 799.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.90 : 1,591.65 = 799.34 : x
2. Step 2: Convert to fraction form
   1,152.90/1,591.65 = 799.34/x
3. Step 3: Cross multiply
   1,152.90x = 1,591.65 × 799.34
4. Step 4: Simplify right side
   1,152.90x = 1,272,261.55
5. Step 5: Solve for x
   x = 1,272,261.55/1,152.90
6. Step 6: Final answer
   x = 1,103.53