Finding the Fourth Proportional to 1,978.92, 2,971.41 and 1,875.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.92 : 2,971.41 = 1,875.03 : x
2. Step 2: Convert to fraction form
   1,978.92/2,971.41 = 1,875.03/x
3. Step 3: Cross multiply
   1,978.92x = 2,971.41 × 1,875.03
4. Step 4: Simplify right side
   1,978.92x = 5,571,482.89
5. Step 5: Solve for x
   x = 5,571,482.89/1,978.92
6. Step 6: Final answer
   x = 2,815.42