Finding the Fourth Proportional to 1,420.99, 1,960.42 and 1,048.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420.99 : 1,960.42 = 1,048.86 : x
2. Step 2: Convert to fraction form
   1,420.99/1,960.42 = 1,048.86/x
3. Step 3: Cross multiply
   1,420.99x = 1,960.42 × 1,048.86
4. Step 4: Simplify right side
   1,420.99x = 2,056,201.39
5. Step 5: Solve for x
   x = 2,056,201.39/1,420.99
6. Step 6: Final answer
   x = 1,447.02