Finding the Fourth Proportional to 2,356.89, 3,251.57 and 1,412.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.89 : 3,251.57 = 1,412.70 : x
2. Step 2: Convert to fraction form
   2,356.89/3,251.57 = 1,412.70/x
3. Step 3: Cross multiply
   2,356.89x = 3,251.57 × 1,412.70
4. Step 4: Simplify right side
   2,356.89x = 4,593,492.94
5. Step 5: Solve for x
   x = 4,593,492.94/2,356.89
6. Step 6: Final answer
   x = 1,948.96