Finding the Fourth Proportional to 3,783.98, 5,674.22 and 1,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,783.98 : 5,674.22 = 1,591.50 : x
2. Step 2: Convert to fraction form
   3,783.98/5,674.22 = 1,591.50/x
3. Step 3: Cross multiply
   3,783.98x = 5,674.22 × 1,591.50
4. Step 4: Simplify right side
   3,783.98x = 9,030,521.13
5. Step 5: Solve for x
   x = 9,030,521.13/3,783.98
6. Step 6: Final answer
   x = 2,386.51