Finding the Fourth Proportional to 1,530.22, 2,111.62 and 940.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.22 : 2,111.62 = 940.54 : x
2. Step 2: Convert to fraction form
   1,530.22/2,111.62 = 940.54/x
3. Step 3: Cross multiply
   1,530.22x = 2,111.62 × 940.54
4. Step 4: Simplify right side
   1,530.22x = 1,986,063.07
5. Step 5: Solve for x
   x = 1,986,063.07/1,530.22
6. Step 6: Final answer
   x = 1,297.89