Finding the Fourth Proportional to 3,900.16, 5,848.71 and 1,434.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.16 : 5,848.71 = 1,434.34 : x
2. Step 2: Convert to fraction form
   3,900.16/5,848.71 = 1,434.34/x
3. Step 3: Cross multiply
   3,900.16x = 5,848.71 × 1,434.34
4. Step 4: Simplify right side
   3,900.16x = 8,389,038.70
5. Step 5: Solve for x
   x = 8,389,038.70/3,900.16
6. Step 6: Final answer
   x = 2,150.95