Finding the Fourth Proportional to 1,530.16, 2,111.40 and 867.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.16 : 2,111.40 = 867.04 : x
2. Step 2: Convert to fraction form
   1,530.16/2,111.40 = 867.04/x
3. Step 3: Cross multiply
   1,530.16x = 2,111.40 × 867.04
4. Step 4: Simplify right side
   1,530.16x = 1,830,662.98
5. Step 5: Solve for x
   x = 1,830,662.98/1,530.16
6. Step 6: Final answer
   x = 1,196.39