Finding the Fourth Proportional to 1,929.64, 2,662.89 and 1,090.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.64 : 2,662.89 = 1,090.61 : x
2. Step 2: Convert to fraction form
   1,929.64/2,662.89 = 1,090.61/x
3. Step 3: Cross multiply
   1,929.64x = 2,662.89 × 1,090.61
4. Step 4: Simplify right side
   1,929.64x = 2,904,178.39
5. Step 5: Solve for x
   x = 2,904,178.39/1,929.64
6. Step 6: Final answer
   x = 1,505.04