Finding the Fourth Proportional to 2,997.72, 4,134.17 and 1,878.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,997.72 : 4,134.17 = 1,878.79 : x
2. Step 2: Convert to fraction form
   2,997.72/4,134.17 = 1,878.79/x
3. Step 3: Cross multiply
   2,997.72x = 4,134.17 × 1,878.79
4. Step 4: Simplify right side
   2,997.72x = 7,767,231.62
5. Step 5: Solve for x
   x = 7,767,231.62/2,997.72
6. Step 6: Final answer
   x = 2,591.04