Finding the Fourth Proportional to 2,896.58, 4,307.61 and 2,804.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,896.58 : 4,307.61 = 2,804.32 : x
2. Step 2: Convert to fraction form
   2,896.58/4,307.61 = 2,804.32/x
3. Step 3: Cross multiply
   2,896.58x = 4,307.61 × 2,804.32
4. Step 4: Simplify right side
   2,896.58x = 12,079,881.32
5. Step 5: Solve for x
   x = 12,079,881.32/2,896.58
6. Step 6: Final answer
   x = 4,170.39