Finding the Fourth Proportional to 1,973.64, 2,705.98 and 1,938.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973.64 : 2,705.98 = 1,938.56 : x
2. Step 2: Convert to fraction form
   1,973.64/2,705.98 = 1,938.56/x
3. Step 3: Cross multiply
   1,973.64x = 2,705.98 × 1,938.56
4. Step 4: Simplify right side
   1,973.64x = 5,245,704.59
5. Step 5: Solve for x
   x = 5,245,704.59/1,973.64
6. Step 6: Final answer
   x = 2,657.88