Finding the Fourth Proportional to 1,677.71, 2,314.72 and 969.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.71 : 2,314.72 = 969.47 : x
2. Step 2: Convert to fraction form
   1,677.71/2,314.72 = 969.47/x
3. Step 3: Cross multiply
   1,677.71x = 2,314.72 × 969.47
4. Step 4: Simplify right side
   1,677.71x = 2,244,051.60
5. Step 5: Solve for x
   x = 2,244,051.60/1,677.71
6. Step 6: Final answer
   x = 1,337.57