Finding the Fourth Proportional to 2,870.91, 4,304.78 and 1,114.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.91 : 4,304.78 = 1,114.82 : x
2. Step 2: Convert to fraction form
   2,870.91/4,304.78 = 1,114.82/x
3. Step 3: Cross multiply
   2,870.91x = 4,304.78 × 1,114.82
4. Step 4: Simplify right side
   2,870.91x = 4,799,060.03
5. Step 5: Solve for x
   x = 4,799,060.03/2,870.91
6. Step 6: Final answer
   x = 1,671.62