Finding the Fourth Proportional to 1,754.17, 2,419.60 and 1,055.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,754.17 : 2,419.60 = 1,055.55 : x
2. Step 2: Convert to fraction form
   1,754.17/2,419.60 = 1,055.55/x
3. Step 3: Cross multiply
   1,754.17x = 2,419.60 × 1,055.55
4. Step 4: Simplify right side
   1,754.17x = 2,554,008.78
5. Step 5: Solve for x
   x = 2,554,008.78/1,754.17
6. Step 6: Final answer
   x = 1,455.96