Finding the Fourth Proportional to 2,587.34, 3,881.10 and 943.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.34 : 3,881.10 = 943.58 : x
2. Step 2: Convert to fraction form
   2,587.34/3,881.10 = 943.58/x
3. Step 3: Cross multiply
   2,587.34x = 3,881.10 × 943.58
4. Step 4: Simplify right side
   2,587.34x = 3,662,128.34
5. Step 5: Solve for x
   x = 3,662,128.34/2,587.34
6. Step 6: Final answer
   x = 1,415.40