Finding the Fourth Proportional to 1,408.84, 1,943.60 and 849.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.84 : 1,943.60 = 849.02 : x
2. Step 2: Convert to fraction form
   1,408.84/1,943.60 = 849.02/x
3. Step 3: Cross multiply
   1,408.84x = 1,943.60 × 849.02
4. Step 4: Simplify right side
   1,408.84x = 1,650,141.31
5. Step 5: Solve for x
   x = 1,650,141.31/1,408.84
6. Step 6: Final answer
   x = 1,171.28