Finding the Fourth Proportional to 1,715.86, 2,367.51 and 1,118.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.86 : 2,367.51 = 1,118.30 : x
2. Step 2: Convert to fraction form
   1,715.86/2,367.51 = 1,118.30/x
3. Step 3: Cross multiply
   1,715.86x = 2,367.51 × 1,118.30
4. Step 4: Simplify right side
   1,715.86x = 2,647,586.43
5. Step 5: Solve for x
   x = 2,647,586.43/1,715.86
6. Step 6: Final answer
   x = 1,543.01