Finding the Fourth Proportional to 1,404.02, 2,106.03 and 581.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.02 : 2,106.03 = 581.42 : x
2. Step 2: Convert to fraction form
   1,404.02/2,106.03 = 581.42/x
3. Step 3: Cross multiply
   1,404.02x = 2,106.03 × 581.42
4. Step 4: Simplify right side
   1,404.02x = 1,224,487.96
5. Step 5: Solve for x
   x = 1,224,487.96/1,404.02
6. Step 6: Final answer
   x = 872.13