Finding the Fourth Proportional to 1,360.58, 2,039.25 and 947.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.58 : 2,039.25 = 947.48 : x
2. Step 2: Convert to fraction form
   1,360.58/2,039.25 = 947.48/x
3. Step 3: Cross multiply
   1,360.58x = 2,039.25 × 947.48
4. Step 4: Simplify right side
   1,360.58x = 1,932,148.59
5. Step 5: Solve for x
   x = 1,932,148.59/1,360.58
6. Step 6: Final answer
   x = 1,420.09