Finding the Fourth Proportional to 1,687.50, 2,328.42 and 941.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687.50 : 2,328.42 = 941.43 : x
2. Step 2: Convert to fraction form
   1,687.50/2,328.42 = 941.43/x
3. Step 3: Cross multiply
   1,687.50x = 2,328.42 × 941.43
4. Step 4: Simplify right side
   1,687.50x = 2,192,044.44
5. Step 5: Solve for x
   x = 2,192,044.44/1,687.50
6. Step 6: Final answer
   x = 1,298.99