Finding the Fourth Proportional to 1,807.82, 2,494.79 and 1,011.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.82 : 2,494.79 = 1,011.17 : x
2. Step 2: Convert to fraction form
   1,807.82/2,494.79 = 1,011.17/x
3. Step 3: Cross multiply
   1,807.82x = 2,494.79 × 1,011.17
4. Step 4: Simplify right side
   1,807.82x = 2,522,665.57
5. Step 5: Solve for x
   x = 2,522,665.57/1,807.82
6. Step 6: Final answer
   x = 1,395.42