Finding the Fourth Proportional to 2,047.76, 3,071.87 and 587.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.76 : 3,071.87 = 587.15 : x
2. Step 2: Convert to fraction form
   2,047.76/3,071.87 = 587.15/x
3. Step 3: Cross multiply
   2,047.76x = 3,071.87 × 587.15
4. Step 4: Simplify right side
   2,047.76x = 1,803,648.47
5. Step 5: Solve for x
   x = 1,803,648.47/2,047.76
6. Step 6: Final answer
   x = 880.79