Finding the Fourth Proportional to 2,298.21, 3,445.29 and 912.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.21 : 3,445.29 = 912.52 : x
2. Step 2: Convert to fraction form
   2,298.21/3,445.29 = 912.52/x
3. Step 3: Cross multiply
   2,298.21x = 3,445.29 × 912.52
4. Step 4: Simplify right side
   2,298.21x = 3,143,896.03
5. Step 5: Solve for x
   x = 3,143,896.03/2,298.21
6. Step 6: Final answer
   x = 1,367.98