Finding the Fourth Proportional to 1,890.42, 2,820.56 and 1,692.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.42 : 2,820.56 = 1,692.24 : x
2. Step 2: Convert to fraction form
   1,890.42/2,820.56 = 1,692.24/x
3. Step 3: Cross multiply
   1,890.42x = 2,820.56 × 1,692.24
4. Step 4: Simplify right side
   1,890.42x = 4,773,064.45
5. Step 5: Solve for x
   x = 4,773,064.45/1,890.42
6. Step 6: Final answer
   x = 2,524.87