Finding the Fourth Proportional to 1,309.32, 1,960.52 and 1,048.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309.32 : 1,960.52 = 1,048.10 : x
2. Step 2: Convert to fraction form
   1,309.32/1,960.52 = 1,048.10/x
3. Step 3: Cross multiply
   1,309.32x = 1,960.52 × 1,048.10
4. Step 4: Simplify right side
   1,309.32x = 2,054,821.01
5. Step 5: Solve for x
   x = 2,054,821.01/1,309.32
6. Step 6: Final answer
   x = 1,569.38