Finding the Fourth Proportional to 1,453.23, 2,003.81 and 1,103.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.23 : 2,003.81 = 1,103.31 : x
2. Step 2: Convert to fraction form
   1,453.23/2,003.81 = 1,103.31/x
3. Step 3: Cross multiply
   1,453.23x = 2,003.81 × 1,103.31
4. Step 4: Simplify right side
   1,453.23x = 2,210,818.09
5. Step 5: Solve for x
   x = 2,210,818.09/1,453.23
6. Step 6: Final answer
   x = 1,521.31