Finding the Fourth Proportional to 2,700.48, 4,051.32 and 1,057.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.48 : 4,051.32 = 1,057.18 : x
2. Step 2: Convert to fraction form
   2,700.48/4,051.32 = 1,057.18/x
3. Step 3: Cross multiply
   2,700.48x = 4,051.32 × 1,057.18
4. Step 4: Simplify right side
   2,700.48x = 4,282,974.48
5. Step 5: Solve for x
   x = 4,282,974.48/2,700.48
6. Step 6: Final answer
   x = 1,586.00