Finding the Fourth Proportional to 2,931.34, 4,395.39 and 1,199.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.34 : 4,395.39 = 1,199.56 : x
2. Step 2: Convert to fraction form
   2,931.34/4,395.39 = 1,199.56/x
3. Step 3: Cross multiply
   2,931.34x = 4,395.39 × 1,199.56
4. Step 4: Simplify right side
   2,931.34x = 5,272,534.03
5. Step 5: Solve for x
   x = 5,272,534.03/2,931.34
6. Step 6: Final answer
   x = 1,798.68