Finding the Fourth Proportional to 1,850.50, 2,553.72 and 1,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,850.50 : 2,553.72 = 1,022.50 : x
2. Step 2: Convert to fraction form
   1,850.50/2,553.72 = 1,022.50/x
3. Step 3: Cross multiply
   1,850.50x = 2,553.72 × 1,022.50
4. Step 4: Simplify right side
   1,850.50x = 2,611,178.70
5. Step 5: Solve for x
   x = 2,611,178.70/1,850.50
6. Step 6: Final answer
   x = 1,411.07