Finding the Fourth Proportional to 1,109.04, 1,537.86 and 1,072.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.04 : 1,537.86 = 1,072.14 : x
2. Step 2: Convert to fraction form
   1,109.04/1,537.86 = 1,072.14/x
3. Step 3: Cross multiply
   1,109.04x = 1,537.86 × 1,072.14
4. Step 4: Simplify right side
   1,109.04x = 1,648,801.22
5. Step 5: Solve for x
   x = 1,648,801.22/1,109.04
6. Step 6: Final answer
   x = 1,486.69