Finding the Fourth Proportional to 1,910.42, 2,636.85 and 1,164.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.42 : 2,636.85 = 1,164.79 : x
2. Step 2: Convert to fraction form
   1,910.42/2,636.85 = 1,164.79/x
3. Step 3: Cross multiply
   1,910.42x = 2,636.85 × 1,164.79
4. Step 4: Simplify right side
   1,910.42x = 3,071,372.68
5. Step 5: Solve for x
   x = 3,071,372.68/1,910.42
6. Step 6: Final answer
   x = 1,607.69