Finding the Fourth Proportional to 1,868.51, 2,572.89 and 1,692.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.51 : 2,572.89 = 1,692.74 : x
2. Step 2: Convert to fraction form
   1,868.51/2,572.89 = 1,692.74/x
3. Step 3: Cross multiply
   1,868.51x = 2,572.89 × 1,692.74
4. Step 4: Simplify right side
   1,868.51x = 4,355,233.82
5. Step 5: Solve for x
   x = 4,355,233.82/1,868.51
6. Step 6: Final answer
   x = 2,330.86