Finding the Fourth Proportional to 2,789.82, 3,838.59 and 2,415.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.82 : 3,838.59 = 2,415.60 : x
2. Step 2: Convert to fraction form
   2,789.82/3,838.59 = 2,415.60/x
3. Step 3: Cross multiply
   2,789.82x = 3,838.59 × 2,415.60
4. Step 4: Simplify right side
   2,789.82x = 9,272,498.00
5. Step 5: Solve for x
   x = 9,272,498.00/2,789.82
6. Step 6: Final answer
   x = 3,323.69