Finding the Fourth Proportional to 1,761.12, 2,426.44 and 1,162.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.12 : 2,426.44 = 1,162.55 : x
2. Step 2: Convert to fraction form
   1,761.12/2,426.44 = 1,162.55/x
3. Step 3: Cross multiply
   1,761.12x = 2,426.44 × 1,162.55
4. Step 4: Simplify right side
   1,761.12x = 2,820,848.02
5. Step 5: Solve for x
   x = 2,820,848.02/1,761.12
6. Step 6: Final answer
   x = 1,601.73