Finding the Fourth Proportional to 1,104.98, 1,655.87 and 947.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.98 : 1,655.87 = 947.94 : x
2. Step 2: Convert to fraction form
   1,104.98/1,655.87 = 947.94/x
3. Step 3: Cross multiply
   1,104.98x = 1,655.87 × 947.94
4. Step 4: Simplify right side
   1,104.98x = 1,569,665.41
5. Step 5: Solve for x
   x = 1,569,665.41/1,104.98
6. Step 6: Final answer
   x = 1,420.54