Finding the Fourth Proportional to 2,041.45, 2,816.52 and 1,145.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,041.45 : 2,816.52 = 1,145.06 : x
2. Step 2: Convert to fraction form
   2,041.45/2,816.52 = 1,145.06/x
3. Step 3: Cross multiply
   2,041.45x = 2,816.52 × 1,145.06
4. Step 4: Simplify right side
   2,041.45x = 3,225,084.39
5. Step 5: Solve for x
   x = 3,225,084.39/2,041.45
6. Step 6: Final answer
   x = 1,579.80