Finding the Fourth Proportional to 2,947.89, 4,070.55 and 2,632.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.89 : 4,070.55 = 2,632.60 : x
2. Step 2: Convert to fraction form
   2,947.89/4,070.55 = 2,632.60/x
3. Step 3: Cross multiply
   2,947.89x = 4,070.55 × 2,632.60
4. Step 4: Simplify right side
   2,947.89x = 10,716,144.89
5. Step 5: Solve for x
   x = 10,716,144.89/2,947.89
6. Step 6: Final answer
   x = 3,635.19