Finding the Fourth Proportional to 2,878.18, 4,320.54 and 1,148.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,878.18 : 4,320.54 = 1,148.02 : x
2. Step 2: Convert to fraction form
   2,878.18/4,320.54 = 1,148.02/x
3. Step 3: Cross multiply
   2,878.18x = 4,320.54 × 1,148.02
4. Step 4: Simplify right side
   2,878.18x = 4,960,066.33
5. Step 5: Solve for x
   x = 4,960,066.33/2,878.18
6. Step 6: Final answer
   x = 1,723.33