Finding the Fourth Proportional to 1,385.85, 1,912.44 and 796.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.85 : 1,912.44 = 796.35 : x
2. Step 2: Convert to fraction form
   1,385.85/1,912.44 = 796.35/x
3. Step 3: Cross multiply
   1,385.85x = 1,912.44 × 796.35
4. Step 4: Simplify right side
   1,385.85x = 1,522,971.59
5. Step 5: Solve for x
   x = 1,522,971.59/1,385.85
6. Step 6: Final answer
   x = 1,098.94