Finding the Fourth Proportional to 2,611.39, 3,915.55 and 1,734.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.39 : 3,915.55 = 1,734.37 : x
2. Step 2: Convert to fraction form
   2,611.39/3,915.55 = 1,734.37/x
3. Step 3: Cross multiply
   2,611.39x = 3,915.55 × 1,734.37
4. Step 4: Simplify right side
   2,611.39x = 6,791,012.45
5. Step 5: Solve for x
   x = 6,791,012.45/2,611.39
6. Step 6: Final answer
   x = 2,600.54