Finding the Fourth Proportional to 1,530.08, 2,111.55 and 867.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.08 : 2,111.55 = 867.02 : x
2. Step 2: Convert to fraction form
   1,530.08/2,111.55 = 867.02/x
3. Step 3: Cross multiply
   1,530.08x = 2,111.55 × 867.02
4. Step 4: Simplify right side
   1,530.08x = 1,830,761.36
5. Step 5: Solve for x
   x = 1,830,761.36/1,530.08
6. Step 6: Final answer
   x = 1,196.52