Finding the Fourth Proportional to 1,377.52, 1,900.92 and 818.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.52 : 1,900.92 = 818.04 : x
2. Step 2: Convert to fraction form
   1,377.52/1,900.92 = 818.04/x
3. Step 3: Cross multiply
   1,377.52x = 1,900.92 × 818.04
4. Step 4: Simplify right side
   1,377.52x = 1,555,028.60
5. Step 5: Solve for x
   x = 1,555,028.60/1,377.52
6. Step 6: Final answer
   x = 1,128.86