Finding the Fourth Proportional to 4,847.31, 7,272.17 and 1,384.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,847.31 : 7,272.17 = 1,384.56 : x
2. Step 2: Convert to fraction form
   4,847.31/7,272.17 = 1,384.56/x
3. Step 3: Cross multiply
   4,847.31x = 7,272.17 × 1,384.56
4. Step 4: Simplify right side
   4,847.31x = 10,068,748.77
5. Step 5: Solve for x
   x = 10,068,748.77/4,847.31
6. Step 6: Final answer
   x = 2,077.18