Finding the Fourth Proportional to 1,838.02, 2,760.32 and 1,691.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,838.02 : 2,760.32 = 1,691.50 : x
2. Step 2: Convert to fraction form
   1,838.02/2,760.32 = 1,691.50/x
3. Step 3: Cross multiply
   1,838.02x = 2,760.32 × 1,691.50
4. Step 4: Simplify right side
   1,838.02x = 4,669,081.28
5. Step 5: Solve for x
   x = 4,669,081.28/1,838.02
6. Step 6: Final answer
   x = 2,540.28