Finding the Fourth Proportional to 1,521.46, 2,281.43 and 790.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.46 : 2,281.43 = 790.82 : x
2. Step 2: Convert to fraction form
   1,521.46/2,281.43 = 790.82/x
3. Step 3: Cross multiply
   1,521.46x = 2,281.43 × 790.82
4. Step 4: Simplify right side
   1,521.46x = 1,804,200.47
5. Step 5: Solve for x
   x = 1,804,200.47/1,521.46
6. Step 6: Final answer
   x = 1,185.83