Finding the Fourth Proportional to 1,579.43, 2,178.00 and 1,048.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579.43 : 2,178.00 = 1,048.12 : x
2. Step 2: Convert to fraction form
   1,579.43/2,178.00 = 1,048.12/x
3. Step 3: Cross multiply
   1,579.43x = 2,178.00 × 1,048.12
4. Step 4: Simplify right side
   1,579.43x = 2,282,805.56
5. Step 5: Solve for x
   x = 2,282,805.56/1,579.43
6. Step 6: Final answer
   x = 1,445.34