Finding the Fourth Proportional to 1,672.51, 2,308.55 and 1,009.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.51 : 2,308.55 = 1,009.25 : x
2. Step 2: Convert to fraction form
   1,672.51/2,308.55 = 1,009.25/x
3. Step 3: Cross multiply
   1,672.51x = 2,308.55 × 1,009.25
4. Step 4: Simplify right side
   1,672.51x = 2,329,899.04
5. Step 5: Solve for x
   x = 2,329,899.04/1,672.51
6. Step 6: Final answer
   x = 1,393.06