Finding the Fourth Proportional to 1,559.04, 2,152.56 and 969.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.04 : 2,152.56 = 969.84 : x
2. Step 2: Convert to fraction form
   1,559.04/2,152.56 = 969.84/x
3. Step 3: Cross multiply
   1,559.04x = 2,152.56 × 969.84
4. Step 4: Simplify right side
   1,559.04x = 2,087,638.79
5. Step 5: Solve for x
   x = 2,087,638.79/1,559.04
6. Step 6: Final answer
   x = 1,339.05