Finding the Fourth Proportional to 1,404.74, 2,103.33 and 1,318.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.74 : 2,103.33 = 1,318.16 : x
2. Step 2: Convert to fraction form
   1,404.74/2,103.33 = 1,318.16/x
3. Step 3: Cross multiply
   1,404.74x = 2,103.33 × 1,318.16
4. Step 4: Simplify right side
   1,404.74x = 2,772,525.47
5. Step 5: Solve for x
   x = 2,772,525.47/1,404.74
6. Step 6: Final answer
   x = 1,973.69