Finding the Fourth Proportional to 2,386.71, 3,294.81 and 1,591.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.71 : 3,294.81 = 1,591.36 : x
2. Step 2: Convert to fraction form
   2,386.71/3,294.81 = 1,591.36/x
3. Step 3: Cross multiply
   2,386.71x = 3,294.81 × 1,591.36
4. Step 4: Simplify right side
   2,386.71x = 5,243,220.60
5. Step 5: Solve for x
   x = 5,243,220.60/2,386.71
6. Step 6: Final answer
   x = 2,196.84