Finding the Fourth Proportional to 1,631.74, 2,251.83 and 969.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631.74 : 2,251.83 = 969.10 : x
2. Step 2: Convert to fraction form
   1,631.74/2,251.83 = 969.10/x
3. Step 3: Cross multiply
   1,631.74x = 2,251.83 × 969.10
4. Step 4: Simplify right side
   1,631.74x = 2,182,248.45
5. Step 5: Solve for x
   x = 2,182,248.45/1,631.74
6. Step 6: Final answer
   x = 1,337.38