Finding the Fourth Proportional to 1,530.45, 2,111.94 and 867.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.45 : 2,111.94 = 867.42 : x
2. Step 2: Convert to fraction form
   1,530.45/2,111.94 = 867.42/x
3. Step 3: Cross multiply
   1,530.45x = 2,111.94 × 867.42
4. Step 4: Simplify right side
   1,530.45x = 1,831,938.99
5. Step 5: Solve for x
   x = 1,831,938.99/1,530.45
6. Step 6: Final answer
   x = 1,196.99