Finding the Fourth Proportional to 2,145.42, 3,219.30 and 1,494.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.42 : 3,219.30 = 1,494.90 : x
2. Step 2: Convert to fraction form
   2,145.42/3,219.30 = 1,494.90/x
3. Step 3: Cross multiply
   2,145.42x = 3,219.30 × 1,494.90
4. Step 4: Simplify right side
   2,145.42x = 4,812,531.57
5. Step 5: Solve for x
   x = 4,812,531.57/2,145.42
6. Step 6: Final answer
   x = 2,243.17