Finding the Fourth Proportional to 1,692.69, 2,335.91 and 1,029.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,692.69 : 2,335.91 = 1,029.43 : x
2. Step 2: Convert to fraction form
   1,692.69/2,335.91 = 1,029.43/x
3. Step 3: Cross multiply
   1,692.69x = 2,335.91 × 1,029.43
4. Step 4: Simplify right side
   1,692.69x = 2,404,655.83
5. Step 5: Solve for x
   x = 2,404,655.83/1,692.69
6. Step 6: Final answer
   x = 1,420.61