Finding the Fourth Proportional to 1,298.34, 1,942.86 and 1,022.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.34 : 1,942.86 = 1,022.52 : x
2. Step 2: Convert to fraction form
   1,298.34/1,942.86 = 1,022.52/x
3. Step 3: Cross multiply
   1,298.34x = 1,942.86 × 1,022.52
4. Step 4: Simplify right side
   1,298.34x = 1,986,613.21
5. Step 5: Solve for x
   x = 1,986,613.21/1,298.34
6. Step 6: Final answer
   x = 1,530.12