Finding the Fourth Proportional to 1,530.31, 2,112.72 and 1,110.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.31 : 2,112.72 = 1,110.25 : x
2. Step 2: Convert to fraction form
   1,530.31/2,112.72 = 1,110.25/x
3. Step 3: Cross multiply
   1,530.31x = 2,112.72 × 1,110.25
4. Step 4: Simplify right side
   1,530.31x = 2,345,647.38
5. Step 5: Solve for x
   x = 2,345,647.38/1,530.31
6. Step 6: Final answer
   x = 1,532.79