Finding the Fourth Proportional to 1,688.52, 2,330.10 and 942.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688.52 : 2,330.10 = 942.54 : x
2. Step 2: Convert to fraction form
   1,688.52/2,330.10 = 942.54/x
3. Step 3: Cross multiply
   1,688.52x = 2,330.10 × 942.54
4. Step 4: Simplify right side
   1,688.52x = 2,196,212.45
5. Step 5: Solve for x
   x = 2,196,212.45/1,688.52
6. Step 6: Final answer
   x = 1,300.67