Finding the Fourth Proportional to 1,493.78, 2,061.60 and 969.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.78 : 2,061.60 = 969.62 : x
2. Step 2: Convert to fraction form
   1,493.78/2,061.60 = 969.62/x
3. Step 3: Cross multiply
   1,493.78x = 2,061.60 × 969.62
4. Step 4: Simplify right side
   1,493.78x = 1,998,968.59
5. Step 5: Solve for x
   x = 1,998,968.59/1,493.78
6. Step 6: Final answer
   x = 1,338.19