Finding the Fourth Proportional to 1,385.93, 1,912.54 and 796.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.93 : 1,912.54 = 796.58 : x
2. Step 2: Convert to fraction form
   1,385.93/1,912.54 = 796.58/x
3. Step 3: Cross multiply
   1,385.93x = 1,912.54 × 796.58
4. Step 4: Simplify right side
   1,385.93x = 1,523,491.11
5. Step 5: Solve for x
   x = 1,523,491.11/1,385.93
6. Step 6: Final answer
   x = 1,099.26