Finding the Fourth Proportional to 1,182.39, 1,632.52 and 790.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.39 : 1,632.52 = 790.55 : x
2. Step 2: Convert to fraction form
   1,182.39/1,632.52 = 790.55/x
3. Step 3: Cross multiply
   1,182.39x = 1,632.52 × 790.55
4. Step 4: Simplify right side
   1,182.39x = 1,290,588.69
5. Step 5: Solve for x
   x = 1,290,588.69/1,182.39
6. Step 6: Final answer
   x = 1,091.51