Finding the Fourth Proportional to 1,408.61, 1,943.40 and 848.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.61 : 1,943.40 = 848.86 : x
2. Step 2: Convert to fraction form
   1,408.61/1,943.40 = 848.86/x
3. Step 3: Cross multiply
   1,408.61x = 1,943.40 × 848.86
4. Step 4: Simplify right side
   1,408.61x = 1,649,674.52
5. Step 5: Solve for x
   x = 1,649,674.52/1,408.61
6. Step 6: Final answer
   x = 1,171.14