Finding the Fourth Proportional to 1,047.79, 1,445.83 and 753.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.79 : 1,445.83 = 753.67 : x
2. Step 2: Convert to fraction form
   1,047.79/1,445.83 = 753.67/x
3. Step 3: Cross multiply
   1,047.79x = 1,445.83 × 753.67
4. Step 4: Simplify right side
   1,047.79x = 1,089,678.70
5. Step 5: Solve for x
   x = 1,089,678.70/1,047.79
6. Step 6: Final answer
   x = 1,039.98