Finding the Fourth Proportional to 2,453.63, 3,386.00 and 1,406.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.63 : 3,386.00 = 1,406.30 : x
2. Step 2: Convert to fraction form
   2,453.63/3,386.00 = 1,406.30/x
3. Step 3: Cross multiply
   2,453.63x = 3,386.00 × 1,406.30
4. Step 4: Simplify right side
   2,453.63x = 4,761,718.39
5. Step 5: Solve for x
   x = 4,761,718.39/2,453.63
6. Step 6: Final answer
   x = 1,940.69