Finding the Fourth Proportional to 2,402.56, 3,602.38 and 939.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.56 : 3,602.38 = 939.96 : x
2. Step 2: Convert to fraction form
   2,402.56/3,602.38 = 939.96/x
3. Step 3: Cross multiply
   2,402.56x = 3,602.38 × 939.96
4. Step 4: Simplify right side
   2,402.56x = 3,386,093.10
5. Step 5: Solve for x
   x = 3,386,093.10/2,402.56
6. Step 6: Final answer
   x = 1,409.37