Finding the Fourth Proportional to 3,604.34, 5,406.05 and 972.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,604.34 : 5,406.05 = 972.05 : x
2. Step 2: Convert to fraction form
   3,604.34/5,406.05 = 972.05/x
3. Step 3: Cross multiply
   3,604.34x = 5,406.05 × 972.05
4. Step 4: Simplify right side
   3,604.34x = 5,254,926.30
5. Step 5: Solve for x
   x = 5,254,926.30/3,604.34
6. Step 6: Final answer
   x = 1,457.94