Finding the Fourth Proportional to 2,877.88, 3,968.04 and 2,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.88 : 3,968.04 = 2,038.72 : x
2. Step 2: Convert to fraction form
   2,877.88/3,968.04 = 2,038.72/x
3. Step 3: Cross multiply
   2,877.88x = 3,968.04 × 2,038.72
4. Step 4: Simplify right side
   2,877.88x = 8,089,722.51
5. Step 5: Solve for x
   x = 8,089,722.51/2,877.88
6. Step 6: Final answer
   x = 2,811.00