Finding the Fourth Proportional to 2,996.91, 4,495.55 and 917.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,996.91 : 4,495.55 = 917.06 : x
2. Step 2: Convert to fraction form
   2,996.91/4,495.55 = 917.06/x
3. Step 3: Cross multiply
   2,996.91x = 4,495.55 × 917.06
4. Step 4: Simplify right side
   2,996.91x = 4,122,662.02
5. Step 5: Solve for x
   x = 4,122,662.02/2,996.91
6. Step 6: Final answer
   x = 1,375.64