Finding the Fourth Proportional to 2,633.01, 3,947.54 and 1,245.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.01 : 3,947.54 = 1,245.57 : x
2. Step 2: Convert to fraction form
   2,633.01/3,947.54 = 1,245.57/x
3. Step 3: Cross multiply
   2,633.01x = 3,947.54 × 1,245.57
4. Step 4: Simplify right side
   2,633.01x = 4,916,931.17
5. Step 5: Solve for x
   x = 4,916,931.17/2,633.01
6. Step 6: Final answer
   x = 1,867.42