Finding the Fourth Proportional to 1,530.44, 2,111.34 and 1,088.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.44 : 2,111.34 = 1,088.60 : x
2. Step 2: Convert to fraction form
   1,530.44/2,111.34 = 1,088.60/x
3. Step 3: Cross multiply
   1,530.44x = 2,111.34 × 1,088.60
4. Step 4: Simplify right side
   1,530.44x = 2,298,404.72
5. Step 5: Solve for x
   x = 2,298,404.72/1,530.44
6. Step 6: Final answer
   x = 1,501.79