Finding the Fourth Proportional to 2,018.88, 3,030.48 and 924.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.88 : 3,030.48 = 924.12 : x
2. Step 2: Convert to fraction form
   2,018.88/3,030.48 = 924.12/x
3. Step 3: Cross multiply
   2,018.88x = 3,030.48 × 924.12
4. Step 4: Simplify right side
   2,018.88x = 2,800,527.18
5. Step 5: Solve for x
   x = 2,800,527.18/2,018.88
6. Step 6: Final answer
   x = 1,387.17