Finding the Fourth Proportional to 2,263.39, 3,392.76 and 947.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263.39 : 3,392.76 = 947.93 : x
2. Step 2: Convert to fraction form
   2,263.39/3,392.76 = 947.93/x
3. Step 3: Cross multiply
   2,263.39x = 3,392.76 × 947.93
4. Step 4: Simplify right side
   2,263.39x = 3,216,092.45
5. Step 5: Solve for x
   x = 3,216,092.45/2,263.39
6. Step 6: Final answer
   x = 1,420.92