Finding the Fourth Proportional to 1,381.25, 2,069.85 and 796.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.25 : 2,069.85 = 796.43 : x
2. Step 2: Convert to fraction form
   1,381.25/2,069.85 = 796.43/x
3. Step 3: Cross multiply
   1,381.25x = 2,069.85 × 796.43
4. Step 4: Simplify right side
   1,381.25x = 1,648,498.80
5. Step 5: Solve for x
   x = 1,648,498.80/1,381.25
6. Step 6: Final answer
   x = 1,193.48