Finding the Fourth Proportional to 1,418.68, 1,960.50 and 1,156.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.68 : 1,960.50 = 1,156.60 : x
2. Step 2: Convert to fraction form
   1,418.68/1,960.50 = 1,156.60/x
3. Step 3: Cross multiply
   1,418.68x = 1,960.50 × 1,156.60
4. Step 4: Simplify right side
   1,418.68x = 2,267,514.30
5. Step 5: Solve for x
   x = 2,267,514.30/1,418.68
6. Step 6: Final answer
   x = 1,598.33