Finding the Fourth Proportional to 2,084.38, 3,126.54 and 786.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.38 : 3,126.54 = 786.13 : x
2. Step 2: Convert to fraction form
   2,084.38/3,126.54 = 786.13/x
3. Step 3: Cross multiply
   2,084.38x = 3,126.54 × 786.13
4. Step 4: Simplify right side
   2,084.38x = 2,457,866.89
5. Step 5: Solve for x
   x = 2,457,866.89/2,084.38
6. Step 6: Final answer
   x = 1,179.18