Finding the Fourth Proportional to 1,256.94, 1,881.89 and 947.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.94 : 1,881.89 = 947.82 : x
2. Step 2: Convert to fraction form
   1,256.94/1,881.89 = 947.82/x
3. Step 3: Cross multiply
   1,256.94x = 1,881.89 × 947.82
4. Step 4: Simplify right side
   1,256.94x = 1,783,688.24
5. Step 5: Solve for x
   x = 1,783,688.24/1,256.94
6. Step 6: Final answer
   x = 1,419.07