Finding the Fourth Proportional to 1,558.48, 2,151.24 and 969.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.48 : 2,151.24 = 969.52 : x
2. Step 2: Convert to fraction form
   1,558.48/2,151.24 = 969.52/x
3. Step 3: Cross multiply
   1,558.48x = 2,151.24 × 969.52
4. Step 4: Simplify right side
   1,558.48x = 2,085,670.20
5. Step 5: Solve for x
   x = 2,085,670.20/1,558.48
6. Step 6: Final answer
   x = 1,338.27