Finding the Fourth Proportional to 2,406.99, 3,321.64 and 1,359.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.99 : 3,321.64 = 1,359.05 : x
2. Step 2: Convert to fraction form
   2,406.99/3,321.64 = 1,359.05/x
3. Step 3: Cross multiply
   2,406.99x = 3,321.64 × 1,359.05
4. Step 4: Simplify right side
   2,406.99x = 4,514,267.29
5. Step 5: Solve for x
   x = 4,514,267.29/2,406.99
6. Step 6: Final answer
   x = 1,875.49