Finding the Fourth Proportional to 1,418.38, 1,957.98 and 947.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.38 : 1,957.98 = 947.03 : x
2. Step 2: Convert to fraction form
   1,418.38/1,957.98 = 947.03/x
3. Step 3: Cross multiply
   1,418.38x = 1,957.98 × 947.03
4. Step 4: Simplify right side
   1,418.38x = 1,854,265.80
5. Step 5: Solve for x
   x = 1,854,265.80/1,418.38
6. Step 6: Final answer
   x = 1,307.31