Finding the Fourth Proportional to 1,530.49, 2,111.71 and 1,088.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.49 : 2,111.71 = 1,088.23 : x
2. Step 2: Convert to fraction form
   1,530.49/2,111.71 = 1,088.23/x
3. Step 3: Cross multiply
   1,530.49x = 2,111.71 × 1,088.23
4. Step 4: Simplify right side
   1,530.49x = 2,298,026.17
5. Step 5: Solve for x
   x = 2,298,026.17/1,530.49
6. Step 6: Final answer
   x = 1,501.50