Finding the Fourth Proportional to 1,081.98, 1,614.12 and 1,052.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.98 : 1,614.12 = 1,052.22 : x
2. Step 2: Convert to fraction form
   1,081.98/1,614.12 = 1,052.22/x
3. Step 3: Cross multiply
   1,081.98x = 1,614.12 × 1,052.22
4. Step 4: Simplify right side
   1,081.98x = 1,698,409.35
5. Step 5: Solve for x
   x = 1,698,409.35/1,081.98
6. Step 6: Final answer
   x = 1,569.72