Finding the Fourth Proportional to 2,998.56, 4,138.52 and 1,820.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,998.56 : 4,138.52 = 1,820.42 : x
2. Step 2: Convert to fraction form
   2,998.56/4,138.52 = 1,820.42/x
3. Step 3: Cross multiply
   2,998.56x = 4,138.52 × 1,820.42
4. Step 4: Simplify right side
   2,998.56x = 7,533,814.78
5. Step 5: Solve for x
   x = 7,533,814.78/2,998.56
6. Step 6: Final answer
   x = 2,512.48