Finding the Fourth Proportional to 1,480.81, 2,203.73 and 1,431.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,480.81 : 2,203.73 = 1,431.59 : x
2. Step 2: Convert to fraction form
   1,480.81/2,203.73 = 1,431.59/x
3. Step 3: Cross multiply
   1,480.81x = 2,203.73 × 1,431.59
4. Step 4: Simplify right side
   1,480.81x = 3,154,837.83
5. Step 5: Solve for x
   x = 3,154,837.83/1,480.81
6. Step 6: Final answer
   x = 2,130.48