Finding the Fourth Proportional to 2,018.79, 3,025.42 and 1,045.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.79 : 3,025.42 = 1,045.58 : x
2. Step 2: Convert to fraction form
   2,018.79/3,025.42 = 1,045.58/x
3. Step 3: Cross multiply
   2,018.79x = 3,025.42 × 1,045.58
4. Step 4: Simplify right side
   2,018.79x = 3,163,300.90
5. Step 5: Solve for x
   x = 3,163,300.90/2,018.79
6. Step 6: Final answer
   x = 1,566.93