Finding the Fourth Proportional to 3,437.43, 5,156.12 and 972.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,437.43 : 5,156.12 = 972.23 : x
2. Step 2: Convert to fraction form
   3,437.43/5,156.12 = 972.23/x
3. Step 3: Cross multiply
   3,437.43x = 5,156.12 × 972.23
4. Step 4: Simplify right side
   3,437.43x = 5,012,934.55
5. Step 5: Solve for x
   x = 5,012,934.55/3,437.43
6. Step 6: Final answer
   x = 1,458.34