Finding the Fourth Proportional to 1,417.91, 1,957.06 and 969.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.91 : 1,957.06 = 969.57 : x
2. Step 2: Convert to fraction form
   1,417.91/1,957.06 = 969.57/x
3. Step 3: Cross multiply
   1,417.91x = 1,957.06 × 969.57
4. Step 4: Simplify right side
   1,417.91x = 1,897,507.88
5. Step 5: Solve for x
   x = 1,897,507.88/1,417.91
6. Step 6: Final answer
   x = 1,338.25