Finding the Fourth Proportional to 1,357.99, 1,874.04 and 790.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.99 : 1,874.04 = 790.97 : x
2. Step 2: Convert to fraction form
   1,357.99/1,874.04 = 790.97/x
3. Step 3: Cross multiply
   1,357.99x = 1,874.04 × 790.97
4. Step 4: Simplify right side
   1,357.99x = 1,482,311.40
5. Step 5: Solve for x
   x = 1,482,311.40/1,357.99
6. Step 6: Final answer
   x = 1,091.55