Finding the Fourth Proportional to 1,152.50, 1,590.84 and 798.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.50 : 1,590.84 = 798.12 : x
2. Step 2: Convert to fraction form
   1,152.50/1,590.84 = 798.12/x
3. Step 3: Cross multiply
   1,152.50x = 1,590.84 × 798.12
4. Step 4: Simplify right side
   1,152.50x = 1,269,681.22
5. Step 5: Solve for x
   x = 1,269,681.22/1,152.50
6. Step 6: Final answer
   x = 1,101.68