Finding the Fourth Proportional to 1,978.18, 2,960.83 and 1,457.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.18 : 2,960.83 = 1,457.98 : x
2. Step 2: Convert to fraction form
   1,978.18/2,960.83 = 1,457.98/x
3. Step 3: Cross multiply
   1,978.18x = 2,960.83 × 1,457.98
4. Step 4: Simplify right side
   1,978.18x = 4,316,830.92
5. Step 5: Solve for x
   x = 4,316,830.92/1,978.18
6. Step 6: Final answer
   x = 2,182.22