Finding the Fourth Proportional to 2,888.96, 3,985.80 and 1,826.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,888.96 : 3,985.80 = 1,826.72 : x
2. Step 2: Convert to fraction form
   2,888.96/3,985.80 = 1,826.72/x
3. Step 3: Cross multiply
   2,888.96x = 3,985.80 × 1,826.72
4. Step 4: Simplify right side
   2,888.96x = 7,280,940.58
5. Step 5: Solve for x
   x = 7,280,940.58/2,888.96
6. Step 6: Final answer
   x = 2,520.26