Finding the Fourth Proportional to 4,901.31, 7,349.94 and 1,978.83

Step by Step Solution

1. Step 1: Write the proportion equation
   4,901.31 : 7,349.94 = 1,978.83 : x
2. Step 2: Convert to fraction form
   4,901.31/7,349.94 = 1,978.83/x
3. Step 3: Cross multiply
   4,901.31x = 7,349.94 × 1,978.83
4. Step 4: Simplify right side
   4,901.31x = 14,544,281.77
5. Step 5: Solve for x
   x = 14,544,281.77/4,901.31
6. Step 6: Final answer
   x = 2,967.43