Finding the Fourth Proportional to 2,910.38, 4,363.61 and 1,061.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,910.38 : 4,363.61 = 1,061.25 : x
2. Step 2: Convert to fraction form
   2,910.38/4,363.61 = 1,061.25/x
3. Step 3: Cross multiply
   2,910.38x = 4,363.61 × 1,061.25
4. Step 4: Simplify right side
   2,910.38x = 4,630,875.81
5. Step 5: Solve for x
   x = 4,630,875.81/2,910.38
6. Step 6: Final answer
   x = 1,591.16