Finding the Fourth Proportional to 2,112.96, 2,917.56 and 1,490.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.96 : 2,917.56 = 1,490.88 : x
2. Step 2: Convert to fraction form
   2,112.96/2,917.56 = 1,490.88/x
3. Step 3: Cross multiply
   2,112.96x = 2,917.56 × 1,490.88
4. Step 4: Simplify right side
   2,112.96x = 4,349,731.85
5. Step 5: Solve for x
   x = 4,349,731.85/2,112.96
6. Step 6: Final answer
   x = 2,058.60