Finding the Fourth Proportional to 1,978.84, 2,972.37 and 1,570.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.84 : 2,972.37 = 1,570.82 : x
2. Step 2: Convert to fraction form
   1,978.84/2,972.37 = 1,570.82/x
3. Step 3: Cross multiply
   1,978.84x = 2,972.37 × 1,570.82
4. Step 4: Simplify right side
   1,978.84x = 4,669,058.24
5. Step 5: Solve for x
   x = 4,669,058.24/1,978.84
6. Step 6: Final answer
   x = 2,359.50