Finding the Fourth Proportional to 1,973.76, 2,723.72 and 1,089.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973.76 : 2,723.72 = 1,089.56 : x
2. Step 2: Convert to fraction form
   1,973.76/2,723.72 = 1,089.56/x
3. Step 3: Cross multiply
   1,973.76x = 2,723.72 × 1,089.56
4. Step 4: Simplify right side
   1,973.76x = 2,967,656.36
5. Step 5: Solve for x
   x = 2,967,656.36/1,973.76
6. Step 6: Final answer
   x = 1,503.55