Finding the Fourth Proportional to 1,451.10, 2,173.72 and 670.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.10 : 2,173.72 = 670.02 : x
2. Step 2: Convert to fraction form
   1,451.10/2,173.72 = 670.02/x
3. Step 3: Cross multiply
   1,451.10x = 2,173.72 × 670.02
4. Step 4: Simplify right side
   1,451.10x = 1,456,435.87
5. Step 5: Solve for x
   x = 1,456,435.87/1,451.10
6. Step 6: Final answer
   x = 1,003.68