Finding the Fourth Proportional to 1,909.02, 2,634.89 and 1,123.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,909.02 : 2,634.89 = 1,123.32 : x
2. Step 2: Convert to fraction form
   1,909.02/2,634.89 = 1,123.32/x
3. Step 3: Cross multiply
   1,909.02x = 2,634.89 × 1,123.32
4. Step 4: Simplify right side
   1,909.02x = 2,959,824.63
5. Step 5: Solve for x
   x = 2,959,824.63/1,909.02
6. Step 6: Final answer
   x = 1,550.44