Finding the Fourth Proportional to 2,527.78, 3,488.30 and 1,408.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,527.78 : 3,488.30 = 1,408.80 : x
2. Step 2: Convert to fraction form
   2,527.78/3,488.30 = 1,408.80/x
3. Step 3: Cross multiply
   2,527.78x = 3,488.30 × 1,408.80
4. Step 4: Simplify right side
   2,527.78x = 4,914,317.04
5. Step 5: Solve for x
   x = 4,914,317.04/2,527.78
6. Step 6: Final answer
   x = 1,944.12