Finding the Fourth Proportional to 2,276.50, 3,415.56 and 1,123.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.50 : 3,415.56 = 1,123.06 : x
2. Step 2: Convert to fraction form
   2,276.50/3,415.56 = 1,123.06/x
3. Step 3: Cross multiply
   2,276.50x = 3,415.56 × 1,123.06
4. Step 4: Simplify right side
   2,276.50x = 3,835,878.81
5. Step 5: Solve for x
   x = 3,835,878.81/2,276.50
6. Step 6: Final answer
   x = 1,684.99