Finding the Fourth Proportional to 1,611.29, 2,222.78 and 1,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.29 : 2,222.78 = 1,051.50 : x
2. Step 2: Convert to fraction form
   1,611.29/2,222.78 = 1,051.50/x
3. Step 3: Cross multiply
   1,611.29x = 2,222.78 × 1,051.50
4. Step 4: Simplify right side
   1,611.29x = 2,337,244.68
5. Step 5: Solve for x
   x = 2,337,244.68/1,611.29
6. Step 6: Final answer
   x = 1,450.55