Finding the Fourth Proportional to 4,109.48, 6,164.04 and 1,187.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,109.48 : 6,164.04 = 1,187.72 : x
2. Step 2: Convert to fraction form
   4,109.48/6,164.04 = 1,187.72/x
3. Step 3: Cross multiply
   4,109.48x = 6,164.04 × 1,187.72
4. Step 4: Simplify right side
   4,109.48x = 7,321,153.59
5. Step 5: Solve for x
   x = 7,321,153.59/4,109.48
6. Step 6: Final answer
   x = 1,781.53