Finding the Fourth Proportional to 2,583.68, 3,565.52 and 1,404.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.68 : 3,565.52 = 1,404.78 : x
2. Step 2: Convert to fraction form
   2,583.68/3,565.52 = 1,404.78/x
3. Step 3: Cross multiply
   2,583.68x = 3,565.52 × 1,404.78
4. Step 4: Simplify right side
   2,583.68x = 5,008,764.16
5. Step 5: Solve for x
   x = 5,008,764.16/2,583.68
6. Step 6: Final answer
   x = 1,938.62