Finding the Fourth Proportional to 1,575.51, 2,175.37 and 1,016.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.51 : 2,175.37 = 1,016.31 : x
2. Step 2: Convert to fraction form
   1,575.51/2,175.37 = 1,016.31/x
3. Step 3: Cross multiply
   1,575.51x = 2,175.37 × 1,016.31
4. Step 4: Simplify right side
   1,575.51x = 2,210,850.28
5. Step 5: Solve for x
   x = 2,210,850.28/1,575.51
6. Step 6: Final answer
   x = 1,403.26