Finding the Fourth Proportional to 2,071.50, 3,107.61 and 1,045.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.50 : 3,107.61 = 1,045.50 : x
2. Step 2: Convert to fraction form
   2,071.50/3,107.61 = 1,045.50/x
3. Step 3: Cross multiply
   2,071.50x = 3,107.61 × 1,045.50
4. Step 4: Simplify right side
   2,071.50x = 3,249,006.26
5. Step 5: Solve for x
   x = 3,249,006.26/2,071.50
6. Step 6: Final answer
   x = 1,568.43