Finding the Fourth Proportional to 2,586.08, 3,568.78 and 1,407.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.08 : 3,568.78 = 1,407.15 : x
2. Step 2: Convert to fraction form
   2,586.08/3,568.78 = 1,407.15/x
3. Step 3: Cross multiply
   2,586.08x = 3,568.78 × 1,407.15
4. Step 4: Simplify right side
   2,586.08x = 5,021,808.78
5. Step 5: Solve for x
   x = 5,021,808.78/2,586.08
6. Step 6: Final answer
   x = 1,941.86