Finding the Fourth Proportional to 4,085.61, 6,127.59 and 1,164.21

Step by Step Solution

1. Step 1: Write the proportion equation
   4,085.61 : 6,127.59 = 1,164.21 : x
2. Step 2: Convert to fraction form
   4,085.61/6,127.59 = 1,164.21/x
3. Step 3: Cross multiply
   4,085.61x = 6,127.59 × 1,164.21
4. Step 4: Simplify right side
   4,085.61x = 7,133,801.55
5. Step 5: Solve for x
   x = 7,133,801.55/4,085.61
6. Step 6: Final answer
   x = 1,746.08