Finding the Fourth Proportional to 2,886.72, 4,307.40 and 2,710.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.72 : 4,307.40 = 2,710.38 : x
2. Step 2: Convert to fraction form
   2,886.72/4,307.40 = 2,710.38/x
3. Step 3: Cross multiply
   2,886.72x = 4,307.40 × 2,710.38
4. Step 4: Simplify right side
   2,886.72x = 11,674,690.81
5. Step 5: Solve for x
   x = 11,674,690.81/2,886.72
6. Step 6: Final answer
   x = 4,044.28