Finding the Fourth Proportional to 1,978.03, 2,964.30 and 1,684.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.03 : 2,964.30 = 1,684.00 : x
2. Step 2: Convert to fraction form
   1,978.03/2,964.30 = 1,684.00/x
3. Step 3: Cross multiply
   1,978.03x = 2,964.30 × 1,684.00
4. Step 4: Simplify right side
   1,978.03x = 4,991,871.39
5. Step 5: Solve for x
   x = 4,991,871.39/1,978.03
6. Step 6: Final answer
   x = 2,523.66