Finding the Fourth Proportional to 1,770.18, 2,650.22 and 1,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.18 : 2,650.22 = 1,405.50 : x
2. Step 2: Convert to fraction form
   1,770.18/2,650.22 = 1,405.50/x
3. Step 3: Cross multiply
   1,770.18x = 2,650.22 × 1,405.50
4. Step 4: Simplify right side
   1,770.18x = 3,724,884.21
5. Step 5: Solve for x
   x = 3,724,884.21/1,770.18
6. Step 6: Final answer
   x = 2,104.24