Finding the Fourth Proportional to 1,530.34, 2,111.37 and 940.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.34 : 2,111.37 = 940.66 : x
2. Step 2: Convert to fraction form
   1,530.34/2,111.37 = 940.66/x
3. Step 3: Cross multiply
   1,530.34x = 2,111.37 × 940.66
4. Step 4: Simplify right side
   1,530.34x = 1,986,081.30
5. Step 5: Solve for x
   x = 1,986,081.30/1,530.34
6. Step 6: Final answer
   x = 1,297.80