Finding the Fourth Proportional to 2,423.50, 3,343.32 and 1,428.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,423.50 : 3,343.32 = 1,428.10 : x
2. Step 2: Convert to fraction form
   2,423.50/3,343.32 = 1,428.10/x
3. Step 3: Cross multiply
   2,423.50x = 3,343.32 × 1,428.10
4. Step 4: Simplify right side
   2,423.50x = 4,774,595.29
5. Step 5: Solve for x
   x = 4,774,595.29/2,423.50
6. Step 6: Final answer
   x = 1,970.12