Finding the Fourth Proportional to 1,944.72, 2,915.20 and 969.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,944.72 : 2,915.20 = 969.88 : x
2. Step 2: Convert to fraction form
   1,944.72/2,915.20 = 969.88/x
3. Step 3: Cross multiply
   1,944.72x = 2,915.20 × 969.88
4. Step 4: Simplify right side
   1,944.72x = 2,827,394.18
5. Step 5: Solve for x
   x = 2,827,394.18/1,944.72
6. Step 6: Final answer
   x = 1,453.88