Finding the Fourth Proportional to 1,910.51, 2,636.49 and 1,164.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.51 : 2,636.49 = 1,164.31 : x
2. Step 2: Convert to fraction form
   1,910.51/2,636.49 = 1,164.31/x
3. Step 3: Cross multiply
   1,910.51x = 2,636.49 × 1,164.31
4. Step 4: Simplify right side
   1,910.51x = 3,069,691.67
5. Step 5: Solve for x
   x = 3,069,691.67/1,910.51
6. Step 6: Final answer
   x = 1,606.74