Finding the Fourth Proportional to 2,113.74, 3,168.45 and 1,071.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.74 : 3,168.45 = 1,071.81 : x
2. Step 2: Convert to fraction form
   2,113.74/3,168.45 = 1,071.81/x
3. Step 3: Cross multiply
   2,113.74x = 3,168.45 × 1,071.81
4. Step 4: Simplify right side
   2,113.74x = 3,395,976.39
5. Step 5: Solve for x
   x = 3,395,976.39/2,113.74
6. Step 6: Final answer
   x = 1,606.62