Finding the Fourth Proportional to 2,601.06, 3,902.85 and 2,387.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.06 : 3,902.85 = 2,387.22 : x
2. Step 2: Convert to fraction form
   2,601.06/3,902.85 = 2,387.22/x
3. Step 3: Cross multiply
   2,601.06x = 3,902.85 × 2,387.22
4. Step 4: Simplify right side
   2,601.06x = 9,316,961.58
5. Step 5: Solve for x
   x = 9,316,961.58/2,601.06
6. Step 6: Final answer
   x = 3,581.99