Finding the Fourth Proportional to 1,451.07, 2,003.07 and 1,031.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.07 : 2,003.07 = 1,031.49 : x
2. Step 2: Convert to fraction form
   1,451.07/2,003.07 = 1,031.49/x
3. Step 3: Cross multiply
   1,451.07x = 2,003.07 × 1,031.49
4. Step 4: Simplify right side
   1,451.07x = 2,066,146.67
5. Step 5: Solve for x
   x = 2,066,146.67/1,451.07
6. Step 6: Final answer
   x = 1,423.88