Finding the Fourth Proportional to 2,633.92, 3,946.88 and 1,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.92 : 3,946.88 = 1,902.72 : x
2. Step 2: Convert to fraction form
   2,633.92/3,946.88 = 1,902.72/x
3. Step 3: Cross multiply
   2,633.92x = 3,946.88 × 1,902.72
4. Step 4: Simplify right side
   2,633.92x = 7,509,807.51
5. Step 5: Solve for x
   x = 7,509,807.51/2,633.92
6. Step 6: Final answer
   x = 2,851.19