Finding the Fourth Proportional to 1,366.60, 1,886.34 and 973.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.60 : 1,886.34 = 973.72 : x
2. Step 2: Convert to fraction form
   1,366.60/1,886.34 = 973.72/x
3. Step 3: Cross multiply
   1,366.60x = 1,886.34 × 973.72
4. Step 4: Simplify right side
   1,366.60x = 1,836,766.98
5. Step 5: Solve for x
   x = 1,836,766.98/1,366.60
6. Step 6: Final answer
   x = 1,344.04