Finding the Fourth Proportional to 2,054.98, 3,079.62 and 1,129.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.98 : 3,079.62 = 1,129.42 : x
2. Step 2: Convert to fraction form
   2,054.98/3,079.62 = 1,129.42/x
3. Step 3: Cross multiply
   2,054.98x = 3,079.62 × 1,129.42
4. Step 4: Simplify right side
   2,054.98x = 3,478,184.42
5. Step 5: Solve for x
   x = 3,478,184.42/2,054.98
6. Step 6: Final answer
   x = 1,692.56