Finding the Fourth Proportional to 2,585.55, 3,568.05 and 1,406.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.55 : 3,568.05 = 1,406.60 : x
2. Step 2: Convert to fraction form
   2,585.55/3,568.05 = 1,406.60/x
3. Step 3: Cross multiply
   2,585.55x = 3,568.05 × 1,406.60
4. Step 4: Simplify right side
   2,585.55x = 5,018,814.67
5. Step 5: Solve for x
   x = 5,018,814.67/2,585.55
6. Step 6: Final answer
   x = 1,941.10