Finding the Fourth Proportional to 1,261.82, 1,731.98 and 1,118.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,261.82 : 1,731.98 = 1,118.82 : x
2. Step 2: Convert to fraction form
   1,261.82/1,731.98 = 1,118.82/x
3. Step 3: Cross multiply
   1,261.82x = 1,731.98 × 1,118.82
4. Step 4: Simplify right side
   1,261.82x = 1,937,773.86
5. Step 5: Solve for x
   x = 1,937,773.86/1,261.82
6. Step 6: Final answer
   x = 1,535.70