Finding the Fourth Proportional to 5,066.72, 7,600.56 and 1,988

Step by Step Solution

1. Step 1: Write the proportion equation
   5,066.72 : 7,600.56 = 1,988 : x
2. Step 2: Convert to fraction form
   5,066.72/7,600.56 = 1,988/x
3. Step 3: Cross multiply
   5,066.72x = 7,600.56 × 1,988
4. Step 4: Simplify right side
   5,066.72x = 15,109,913.28
5. Step 5: Solve for x
   x = 15,109,913.28/5,066.72
6. Step 6: Final answer
   x = 2,982.19