Finding the Fourth Proportional to 1,374.79, 1,896.69 and 843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.79 : 1,896.69 = 843.50 : x
2. Step 2: Convert to fraction form
   1,374.79/1,896.69 = 843.50/x
3. Step 3: Cross multiply
   1,374.79x = 1,896.69 × 843.50
4. Step 4: Simplify right side
   1,374.79x = 1,599,862.76
5. Step 5: Solve for x
   x = 1,599,862.76/1,374.79
6. Step 6: Final answer
   x = 1,163.72