Finding the Fourth Proportional to 1,451.16, 2,003.26 and 1,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.16 : 2,003.26 = 1,003.50 : x
2. Step 2: Convert to fraction form
   1,451.16/2,003.26 = 1,003.50/x
3. Step 3: Cross multiply
   1,451.16x = 2,003.26 × 1,003.50
4. Step 4: Simplify right side
   1,451.16x = 2,010,271.41
5. Step 5: Solve for x
   x = 2,010,271.41/1,451.16
6. Step 6: Final answer
   x = 1,385.29