Finding the Fourth Proportional to 1,346.95, 1,858.27 and 993.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.95 : 1,858.27 = 993.72 : x
2. Step 2: Convert to fraction form
   1,346.95/1,858.27 = 993.72/x
3. Step 3: Cross multiply
   1,346.95x = 1,858.27 × 993.72
4. Step 4: Simplify right side
   1,346.95x = 1,846,600.06
5. Step 5: Solve for x
   x = 1,846,600.06/1,346.95
6. Step 6: Final answer
   x = 1,370.95