Finding the Fourth Proportional to 2,917.56, 4,026.27 and 1,591.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,917.56 : 4,026.27 = 1,591.30 : x
2. Step 2: Convert to fraction form
   2,917.56/4,026.27 = 1,591.30/x
3. Step 3: Cross multiply
   2,917.56x = 4,026.27 × 1,591.30
4. Step 4: Simplify right side
   2,917.56x = 6,407,003.45
5. Step 5: Solve for x
   x = 6,407,003.45/2,917.56
6. Step 6: Final answer
   x = 2,196.01