Finding the Fourth Proportional to 2,285.88, 3,156.39 and 1,402.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.88 : 3,156.39 = 1,402.17 : x
2. Step 2: Convert to fraction form
   2,285.88/3,156.39 = 1,402.17/x
3. Step 3: Cross multiply
   2,285.88x = 3,156.39 × 1,402.17
4. Step 4: Simplify right side
   2,285.88x = 4,425,795.37
5. Step 5: Solve for x
   x = 4,425,795.37/2,285.88
6. Step 6: Final answer
   x = 1,936.15