Finding the Fourth Proportional to 1,047.53, 1,445.63 and 693.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.53 : 1,445.63 = 693.76 : x
2. Step 2: Convert to fraction form
   1,047.53/1,445.63 = 693.76/x
3. Step 3: Cross multiply
   1,047.53x = 1,445.63 × 693.76
4. Step 4: Simplify right side
   1,047.53x = 1,002,920.27
5. Step 5: Solve for x
   x = 1,002,920.27/1,047.53
6. Step 6: Final answer
   x = 957.41