Finding the Fourth Proportional to 2,500.35, 3,450.63 and 1,438.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.35 : 3,450.63 = 1,438.46 : x
2. Step 2: Convert to fraction form
   2,500.35/3,450.63 = 1,438.46/x
3. Step 3: Cross multiply
   2,500.35x = 3,450.63 × 1,438.46
4. Step 4: Simplify right side
   2,500.35x = 4,963,575.98
5. Step 5: Solve for x
   x = 4,963,575.98/2,500.35
6. Step 6: Final answer
   x = 1,985.15