Finding the Fourth Proportional to 1,831.82, 2,748.78 and 1,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831.82 : 2,748.78 = 1,692.50 : x
2. Step 2: Convert to fraction form
   1,831.82/2,748.78 = 1,692.50/x
3. Step 3: Cross multiply
   1,831.82x = 2,748.78 × 1,692.50
4. Step 4: Simplify right side
   1,831.82x = 4,652,310.15
5. Step 5: Solve for x
   x = 4,652,310.15/1,831.82
6. Step 6: Final answer
   x = 2,539.72