Finding the Fourth Proportional to 1,415.83, 1,952.86 and 974.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.83 : 1,952.86 = 974.79 : x
2. Step 2: Convert to fraction form
   1,415.83/1,952.86 = 974.79/x
3. Step 3: Cross multiply
   1,415.83x = 1,952.86 × 974.79
4. Step 4: Simplify right side
   1,415.83x = 1,903,628.40
5. Step 5: Solve for x
   x = 1,903,628.40/1,415.83
6. Step 6: Final answer
   x = 1,344.53