Finding the Fourth Proportional to 1,314.72, 1,971.54 and 656.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.72 : 1,971.54 = 656.37 : x
2. Step 2: Convert to fraction form
   1,314.72/1,971.54 = 656.37/x
3. Step 3: Cross multiply
   1,314.72x = 1,971.54 × 656.37
4. Step 4: Simplify right side
   1,314.72x = 1,294,059.71
5. Step 5: Solve for x
   x = 1,294,059.71/1,314.72
6. Step 6: Final answer
   x = 984.29