Finding the Fourth Proportional to 1,349.33, 1,862.06 and 790.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.33 : 1,862.06 = 790.09 : x
2. Step 2: Convert to fraction form
   1,349.33/1,862.06 = 790.09/x
3. Step 3: Cross multiply
   1,349.33x = 1,862.06 × 790.09
4. Step 4: Simplify right side
   1,349.33x = 1,471,200.90
5. Step 5: Solve for x
   x = 1,471,200.90/1,349.33
6. Step 6: Final answer
   x = 1,090.32