Finding the Fourth Proportional to 1,986.24, 2,979.50 and 753.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.24 : 2,979.50 = 753.42 : x
2. Step 2: Convert to fraction form
   1,986.24/2,979.50 = 753.42/x
3. Step 3: Cross multiply
   1,986.24x = 2,979.50 × 753.42
4. Step 4: Simplify right side
   1,986.24x = 2,244,814.89
5. Step 5: Solve for x
   x = 2,244,814.89/1,986.24
6. Step 6: Final answer
   x = 1,130.18