Finding the Fourth Proportional to 1,530.03, 2,111.55 and 940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.03 : 2,111.55 = 940.50 : x
2. Step 2: Convert to fraction form
   1,530.03/2,111.55 = 940.50/x
3. Step 3: Cross multiply
   1,530.03x = 2,111.55 × 940.50
4. Step 4: Simplify right side
   1,530.03x = 1,985,912.78
5. Step 5: Solve for x
   x = 1,985,912.78/1,530.03
6. Step 6: Final answer
   x = 1,297.96