Finding the Fourth Proportional to 3,692.28, 5,094.72 and 2,120.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,692.28 : 5,094.72 = 2,120.34 : x
2. Step 2: Convert to fraction form
   3,692.28/5,094.72 = 2,120.34/x
3. Step 3: Cross multiply
   3,692.28x = 5,094.72 × 2,120.34
4. Step 4: Simplify right side
   3,692.28x = 10,802,538.60
5. Step 5: Solve for x
   x = 10,802,538.60/3,692.28
6. Step 6: Final answer
   x = 2,925.71