Finding the Fourth Proportional to 2,998.82, 4,138.90 and 1,880.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,998.82 : 4,138.90 = 1,880.72 : x
2. Step 2: Convert to fraction form
   2,998.82/4,138.90 = 1,880.72/x
3. Step 3: Cross multiply
   2,998.82x = 4,138.90 × 1,880.72
4. Step 4: Simplify right side
   2,998.82x = 7,784,112.01
5. Step 5: Solve for x
   x = 7,784,112.01/2,998.82
6. Step 6: Final answer
   x = 2,595.72