Finding the Fourth Proportional to 2,101.04, 2,900.98 and 1,355.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.04 : 2,900.98 = 1,355.43 : x
2. Step 2: Convert to fraction form
   2,101.04/2,900.98 = 1,355.43/x
3. Step 3: Cross multiply
   2,101.04x = 2,900.98 × 1,355.43
4. Step 4: Simplify right side
   2,101.04x = 3,932,087.89
5. Step 5: Solve for x
   x = 3,932,087.89/2,101.04
6. Step 6: Final answer
   x = 1,871.50