Finding the Fourth Proportional to 2,404.13, 3,317.72 and 1,356.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.13 : 3,317.72 = 1,356.21 : x
2. Step 2: Convert to fraction form
   2,404.13/3,317.72 = 1,356.21/x
3. Step 3: Cross multiply
   2,404.13x = 3,317.72 × 1,356.21
4. Step 4: Simplify right side
   2,404.13x = 4,499,518.26
5. Step 5: Solve for x
   x = 4,499,518.26/2,404.13
6. Step 6: Final answer
   x = 1,871.58