Finding the Fourth Proportional to 1,274.02, 1,909.71 and 656.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274.02 : 1,909.71 = 656.34 : x
2. Step 2: Convert to fraction form
   1,274.02/1,909.71 = 656.34/x
3. Step 3: Cross multiply
   1,274.02x = 1,909.71 × 656.34
4. Step 4: Simplify right side
   1,274.02x = 1,253,419.06
5. Step 5: Solve for x
   x = 1,253,419.06/1,274.02
6. Step 6: Final answer
   x = 983.83