Finding the Fourth Proportional to 1,687.39, 2,328.61 and 941.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687.39 : 2,328.61 = 941.37 : x
2. Step 2: Convert to fraction form
   1,687.39/2,328.61 = 941.37/x
3. Step 3: Cross multiply
   1,687.39x = 2,328.61 × 941.37
4. Step 4: Simplify right side
   1,687.39x = 2,192,071.95
5. Step 5: Solve for x
   x = 2,192,071.95/1,687.39
6. Step 6: Final answer
   x = 1,299.09