Finding the Fourth Proportional to 1,404.18, 2,105.43 and 583.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.18 : 2,105.43 = 583.02 : x
2. Step 2: Convert to fraction form
   1,404.18/2,105.43 = 583.02/x
3. Step 3: Cross multiply
   1,404.18x = 2,105.43 × 583.02
4. Step 4: Simplify right side
   1,404.18x = 1,227,507.80
5. Step 5: Solve for x
   x = 1,227,507.80/1,404.18
6. Step 6: Final answer
   x = 874.18