Finding the Fourth Proportional to 2,012.31, 2,776.55 and 1,540.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.31 : 2,776.55 = 1,540.76 : x
2. Step 2: Convert to fraction form
   2,012.31/2,776.55 = 1,540.76/x
3. Step 3: Cross multiply
   2,012.31x = 2,776.55 × 1,540.76
4. Step 4: Simplify right side
   2,012.31x = 4,277,975.59
5. Step 5: Solve for x
   x = 4,277,975.59/2,012.31
6. Step 6: Final answer
   x = 2,125.90