Finding the Fourth Proportional to 2,586.18, 3,568.86 and 1,407.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.18 : 3,568.86 = 1,407.23 : x
2. Step 2: Convert to fraction form
   2,586.18/3,568.86 = 1,407.23/x
3. Step 3: Cross multiply
   2,586.18x = 3,568.86 × 1,407.23
4. Step 4: Simplify right side
   2,586.18x = 5,022,189.01
5. Step 5: Solve for x
   x = 5,022,189.01/2,586.18
6. Step 6: Final answer
   x = 1,941.93