Finding the Fourth Proportional to 1,170.83, 1,615.56 and 673.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,170.83 : 1,615.56 = 673.49 : x
2. Step 2: Convert to fraction form
   1,170.83/1,615.56 = 673.49/x
3. Step 3: Cross multiply
   1,170.83x = 1,615.56 × 673.49
4. Step 4: Simplify right side
   1,170.83x = 1,088,063.50
5. Step 5: Solve for x
   x = 1,088,063.50/1,170.83
6. Step 6: Final answer
   x = 929.31