Finding the Fourth Proportional to 2,997.81, 4,494.24 and 1,147.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,997.81 : 4,494.24 = 1,147.89 : x
2. Step 2: Convert to fraction form
   2,997.81/4,494.24 = 1,147.89/x
3. Step 3: Cross multiply
   2,997.81x = 4,494.24 × 1,147.89
4. Step 4: Simplify right side
   2,997.81x = 5,158,893.15
5. Step 5: Solve for x
   x = 5,158,893.15/2,997.81
6. Step 6: Final answer
   x = 1,720.89