Finding the Fourth Proportional to 1,548.89, 2,135.94 and 1,420.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.89 : 2,135.94 = 1,420.83 : x
2. Step 2: Convert to fraction form
   1,548.89/2,135.94 = 1,420.83/x
3. Step 3: Cross multiply
   1,548.89x = 2,135.94 × 1,420.83
4. Step 4: Simplify right side
   1,548.89x = 3,034,807.63
5. Step 5: Solve for x
   x = 3,034,807.63/1,548.89
6. Step 6: Final answer
   x = 1,959.35