Finding the Fourth Proportional to 2,488.59, 3,438.18 and 2,102.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.59 : 3,438.18 = 2,102.22 : x
2. Step 2: Convert to fraction form
   2,488.59/3,438.18 = 2,102.22/x
3. Step 3: Cross multiply
   2,488.59x = 3,438.18 × 2,102.22
4. Step 4: Simplify right side
   2,488.59x = 7,227,810.76
5. Step 5: Solve for x
   x = 7,227,810.76/2,488.59
6. Step 6: Final answer
   x = 2,904.38