Finding the Fourth Proportional to 2,179.35, 3,013.34 and 1,902.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.35 : 3,013.34 = 1,902.57 : x
2. Step 2: Convert to fraction form
   2,179.35/3,013.34 = 1,902.57/x
3. Step 3: Cross multiply
   2,179.35x = 3,013.34 × 1,902.57
4. Step 4: Simplify right side
   2,179.35x = 5,733,069.47
5. Step 5: Solve for x
   x = 5,733,069.47/2,179.35
6. Step 6: Final answer
   x = 2,630.63