Finding the Fourth Proportional to 1,530.41, 2,111.80 and 867.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.41 : 2,111.80 = 867.25 : x
2. Step 2: Convert to fraction form
   1,530.41/2,111.80 = 867.25/x
3. Step 3: Cross multiply
   1,530.41x = 2,111.80 × 867.25
4. Step 4: Simplify right side
   1,530.41x = 1,831,458.55
5. Step 5: Solve for x
   x = 1,831,458.55/1,530.41
6. Step 6: Final answer
   x = 1,196.71