Finding the Fourth Proportional to 2,015.02, 3,019.71 and 1,088.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.02 : 3,019.71 = 1,088.58 : x
2. Step 2: Convert to fraction form
   2,015.02/3,019.71 = 1,088.58/x
3. Step 3: Cross multiply
   2,015.02x = 3,019.71 × 1,088.58
4. Step 4: Simplify right side
   2,015.02x = 3,287,180.81
5. Step 5: Solve for x
   x = 3,287,180.81/2,015.02
6. Step 6: Final answer
   x = 1,631.34