Finding the Fourth Proportional to 1,434.96, 1,977.54 and 992.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.96 : 1,977.54 = 992.06 : x
2. Step 2: Convert to fraction form
   1,434.96/1,977.54 = 992.06/x
3. Step 3: Cross multiply
   1,434.96x = 1,977.54 × 992.06
4. Step 4: Simplify right side
   1,434.96x = 1,961,838.33
5. Step 5: Solve for x
   x = 1,961,838.33/1,434.96
6. Step 6: Final answer
   x = 1,367.17