Finding the Fourth Proportional to 2,085.01, 3,127.61 and 786.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.01 : 3,127.61 = 786.38 : x
2. Step 2: Convert to fraction form
   2,085.01/3,127.61 = 786.38/x
3. Step 3: Cross multiply
   2,085.01x = 3,127.61 × 786.38
4. Step 4: Simplify right side
   2,085.01x = 2,459,476.28
5. Step 5: Solve for x
   x = 2,459,476.28/2,085.01
6. Step 6: Final answer
   x = 1,179.60