Finding the Fourth Proportional to 1,766.17, 2,647.53 and 841.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.17 : 2,647.53 = 841.48 : x
2. Step 2: Convert to fraction form
   1,766.17/2,647.53 = 841.48/x
3. Step 3: Cross multiply
   1,766.17x = 2,647.53 × 841.48
4. Step 4: Simplify right side
   1,766.17x = 2,227,826.10
5. Step 5: Solve for x
   x = 2,227,826.10/1,766.17
6. Step 6: Final answer
   x = 1,261.39