Finding the Fourth Proportional to 2,015.02, 2,780.37 and 1,130.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.02 : 2,780.37 = 1,130.50 : x
2. Step 2: Convert to fraction form
   2,015.02/2,780.37 = 1,130.50/x
3. Step 3: Cross multiply
   2,015.02x = 2,780.37 × 1,130.50
4. Step 4: Simplify right side
   2,015.02x = 3,143,208.29
5. Step 5: Solve for x
   x = 3,143,208.29/2,015.02
6. Step 6: Final answer
   x = 1,559.89