Finding the Fourth Proportional to 3,438.44, 5,156.88 and 972.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,438.44 : 5,156.88 = 972.69 : x
2. Step 2: Convert to fraction form
   3,438.44/5,156.88 = 972.69/x
3. Step 3: Cross multiply
   3,438.44x = 5,156.88 × 972.69
4. Step 4: Simplify right side
   3,438.44x = 5,016,045.61
5. Step 5: Solve for x
   x = 5,016,045.61/3,438.44
6. Step 6: Final answer
   x = 1,458.82