Finding the Fourth Proportional to 1,085.39, 1,498.11 and 974.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.39 : 1,498.11 = 974.67 : x
2. Step 2: Convert to fraction form
   1,085.39/1,498.11 = 974.67/x
3. Step 3: Cross multiply
   1,085.39x = 1,498.11 × 974.67
4. Step 4: Simplify right side
   1,085.39x = 1,460,162.87
5. Step 5: Solve for x
   x = 1,460,162.87/1,085.39
6. Step 6: Final answer
   x = 1,345.29