Finding the Fourth Proportional to 1,817.88, 2,507.83 and 1,071.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,817.88 : 2,507.83 = 1,071.33 : x
2. Step 2: Convert to fraction form
   1,817.88/2,507.83 = 1,071.33/x
3. Step 3: Cross multiply
   1,817.88x = 2,507.83 × 1,071.33
4. Step 4: Simplify right side
   1,817.88x = 2,686,713.51
5. Step 5: Solve for x
   x = 2,686,713.51/1,817.88
6. Step 6: Final answer
   x = 1,477.94