Finding the Fourth Proportional to 1,969.05, 2,717.01 and 1,129.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,969.05 : 2,717.01 = 1,129.79 : x
2. Step 2: Convert to fraction form
   1,969.05/2,717.01 = 1,129.79/x
3. Step 3: Cross multiply
   1,969.05x = 2,717.01 × 1,129.79
4. Step 4: Simplify right side
   1,969.05x = 3,069,650.73
5. Step 5: Solve for x
   x = 3,069,650.73/1,969.05
6. Step 6: Final answer
   x = 1,558.95