Finding the Fourth Proportional to 2,014.71, 2,780.09 and 1,130.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.71 : 2,780.09 = 1,130.31 : x
2. Step 2: Convert to fraction form
   2,014.71/2,780.09 = 1,130.31/x
3. Step 3: Cross multiply
   2,014.71x = 2,780.09 × 1,130.31
4. Step 4: Simplify right side
   2,014.71x = 3,142,357.88
5. Step 5: Solve for x
   x = 3,142,357.88/2,014.71
6. Step 6: Final answer
   x = 1,559.71