Finding the Fourth Proportional to 2,583.80, 3,565.60 and 1,404.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.80 : 3,565.60 = 1,404.86 : x
2. Step 2: Convert to fraction form
   2,583.80/3,565.60 = 1,404.86/x
3. Step 3: Cross multiply
   2,583.80x = 3,565.60 × 1,404.86
4. Step 4: Simplify right side
   2,583.80x = 5,009,168.82
5. Step 5: Solve for x
   x = 5,009,168.82/2,583.80
6. Step 6: Final answer
   x = 1,938.68