Finding the Fourth Proportional to 1,740.06, 2,401.60 and 1,077.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.06 : 2,401.60 = 1,077.20 : x
2. Step 2: Convert to fraction form
   1,740.06/2,401.60 = 1,077.20/x
3. Step 3: Cross multiply
   1,740.06x = 2,401.60 × 1,077.20
4. Step 4: Simplify right side
   1,740.06x = 2,587,003.52
5. Step 5: Solve for x
   x = 2,587,003.52/1,740.06
6. Step 6: Final answer
   x = 1,486.73