Finding the Fourth Proportional to 2,134.77, 3,200.31 and 903.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.77 : 3,200.31 = 903.06 : x
2. Step 2: Convert to fraction form
   2,134.77/3,200.31 = 903.06/x
3. Step 3: Cross multiply
   2,134.77x = 3,200.31 × 903.06
4. Step 4: Simplify right side
   2,134.77x = 2,890,071.95
5. Step 5: Solve for x
   x = 2,890,071.95/2,134.77
6. Step 6: Final answer
   x = 1,353.81