Finding the Fourth Proportional to 1,740.16, 2,401.20 and 1,076.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.16 : 2,401.20 = 1,076.30 : x
2. Step 2: Convert to fraction form
   1,740.16/2,401.20 = 1,076.30/x
3. Step 3: Cross multiply
   1,740.16x = 2,401.20 × 1,076.30
4. Step 4: Simplify right side
   1,740.16x = 2,584,399.55
5. Step 5: Solve for x
   x = 2,584,399.55/1,740.16
6. Step 6: Final answer
   x = 1,485.15