Finding the Fourth Proportional to 1,385.20, 1,911.72 and 795.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.20 : 1,911.72 = 795.76 : x
2. Step 2: Convert to fraction form
   1,385.20/1,911.72 = 795.76/x
3. Step 3: Cross multiply
   1,385.20x = 1,911.72 × 795.76
4. Step 4: Simplify right side
   1,385.20x = 1,521,270.31
5. Step 5: Solve for x
   x = 1,521,270.31/1,385.20
6. Step 6: Final answer
   x = 1,098.23