Finding the Fourth Proportional to 2,792.34, 3,853.93 and 2,087.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,792.34 : 3,853.93 = 2,087.72 : x
2. Step 2: Convert to fraction form
   2,792.34/3,853.93 = 2,087.72/x
3. Step 3: Cross multiply
   2,792.34x = 3,853.93 × 2,087.72
4. Step 4: Simplify right side
   2,792.34x = 8,045,926.74
5. Step 5: Solve for x
   x = 8,045,926.74/2,792.34
6. Step 6: Final answer
   x = 2,881.43