Finding the Fourth Proportional to 1,992.42, 2,985.21 and 1,114.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.42 : 2,985.21 = 1,114.73 : x
2. Step 2: Convert to fraction form
   1,992.42/2,985.21 = 1,114.73/x
3. Step 3: Cross multiply
   1,992.42x = 2,985.21 × 1,114.73
4. Step 4: Simplify right side
   1,992.42x = 3,327,710.61
5. Step 5: Solve for x
   x = 3,327,710.61/1,992.42
6. Step 6: Final answer
   x = 1,670.19