Finding the Fourth Proportional to 1,910.28, 2,636.82 and 1,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.28 : 2,636.82 = 1,164.72 : x
2. Step 2: Convert to fraction form
   1,910.28/2,636.82 = 1,164.72/x
3. Step 3: Cross multiply
   1,910.28x = 2,636.82 × 1,164.72
4. Step 4: Simplify right side
   1,910.28x = 3,071,156.99
5. Step 5: Solve for x
   x = 3,071,156.99/1,910.28
6. Step 6: Final answer
   x = 1,607.70