Finding the Fourth Proportional to 1,164.79, 1,748.06 and 617.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.79 : 1,748.06 = 617.09 : x
2. Step 2: Convert to fraction form
   1,164.79/1,748.06 = 617.09/x
3. Step 3: Cross multiply
   1,164.79x = 1,748.06 × 617.09
4. Step 4: Simplify right side
   1,164.79x = 1,078,714.72
5. Step 5: Solve for x
   x = 1,078,714.72/1,164.79
6. Step 6: Final answer
   x = 926.10