Finding the Fourth Proportional to 2,300.74, 3,451.28 and 657.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.74 : 3,451.28 = 657.42 : x
2. Step 2: Convert to fraction form
   2,300.74/3,451.28 = 657.42/x
3. Step 3: Cross multiply
   2,300.74x = 3,451.28 × 657.42
4. Step 4: Simplify right side
   2,300.74x = 2,268,940.50
5. Step 5: Solve for x
   x = 2,268,940.50/2,300.74
6. Step 6: Final answer
   x = 986.18