Finding the Fourth Proportional to 4,870.10, 7,304.42 and 1,791.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,870.10 : 7,304.42 = 1,791.38 : x
2. Step 2: Convert to fraction form
   4,870.10/7,304.42 = 1,791.38/x
3. Step 3: Cross multiply
   4,870.10x = 7,304.42 × 1,791.38
4. Step 4: Simplify right side
   4,870.10x = 13,084,959.86
5. Step 5: Solve for x
   x = 13,084,959.86/4,870.10
6. Step 6: Final answer
   x = 2,686.80