Finding the Fourth Proportional to 1,406.73, 2,111.02 and 541.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.73 : 2,111.02 = 541.05 : x
2. Step 2: Convert to fraction form
   1,406.73/2,111.02 = 541.05/x
3. Step 3: Cross multiply
   1,406.73x = 2,111.02 × 541.05
4. Step 4: Simplify right side
   1,406.73x = 1,142,167.37
5. Step 5: Solve for x
   x = 1,142,167.37/1,406.73
6. Step 6: Final answer
   x = 811.93