Finding the Fourth Proportional to 1,047.62, 1,572.52 and 969.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.62 : 1,572.52 = 969.86 : x
2. Step 2: Convert to fraction form
   1,047.62/1,572.52 = 969.86/x
3. Step 3: Cross multiply
   1,047.62x = 1,572.52 × 969.86
4. Step 4: Simplify right side
   1,047.62x = 1,525,124.25
5. Step 5: Solve for x
   x = 1,525,124.25/1,047.62
6. Step 6: Final answer
   x = 1,455.80