Finding the Fourth Proportional to 2,865.98, 3,955.25 and 1,590.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865.98 : 3,955.25 = 1,590.27 : x
2. Step 2: Convert to fraction form
   2,865.98/3,955.25 = 1,590.27/x
3. Step 3: Cross multiply
   2,865.98x = 3,955.25 × 1,590.27
4. Step 4: Simplify right side
   2,865.98x = 6,289,925.31
5. Step 5: Solve for x
   x = 6,289,925.31/2,865.98
6. Step 6: Final answer
   x = 2,194.69