Finding the Fourth Proportional to 1,910.18, 2,636.28 and 1,164.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.18 : 2,636.28 = 1,164.25 : x
2. Step 2: Convert to fraction form
   1,910.18/2,636.28 = 1,164.25/x
3. Step 3: Cross multiply
   1,910.18x = 2,636.28 × 1,164.25
4. Step 4: Simplify right side
   1,910.18x = 3,069,282.40
5. Step 5: Solve for x
   x = 3,069,282.40/1,910.18
6. Step 6: Final answer
   x = 1,606.80