Finding the Fourth Proportional to 2,014.64, 2,780.20 and 1,130.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.64 : 2,780.20 = 1,130.45 : x
2. Step 2: Convert to fraction form
   2,014.64/2,780.20 = 1,130.45/x
3. Step 3: Cross multiply
   2,014.64x = 2,780.20 × 1,130.45
4. Step 4: Simplify right side
   2,014.64x = 3,142,867.31
5. Step 5: Solve for x
   x = 3,142,867.31/2,014.64
6. Step 6: Final answer
   x = 1,560.01