Finding the Fourth Proportional to 2,658.48, 3,664.89 and 1,870.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.48 : 3,664.89 = 1,870.08 : x
2. Step 2: Convert to fraction form
   2,658.48/3,664.89 = 1,870.08/x
3. Step 3: Cross multiply
   2,658.48x = 3,664.89 × 1,870.08
4. Step 4: Simplify right side
   2,658.48x = 6,853,630.76
5. Step 5: Solve for x
   x = 6,853,630.76/2,658.48
6. Step 6: Final answer
   x = 2,578.03