Finding the Fourth Proportional to 3,706.76, 5,112.48 and 2,587.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,706.76 : 5,112.48 = 2,587.34 : x
2. Step 2: Convert to fraction form
   3,706.76/5,112.48 = 2,587.34/x
3. Step 3: Cross multiply
   3,706.76x = 5,112.48 × 2,587.34
4. Step 4: Simplify right side
   3,706.76x = 13,227,724.00
5. Step 5: Solve for x
   x = 13,227,724.00/3,706.76
6. Step 6: Final answer
   x = 3,568.54