Finding the Fourth Proportional to 1,411.06, 1,946.59 and 851.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.06 : 1,946.59 = 851.55 : x
2. Step 2: Convert to fraction form
   1,411.06/1,946.59 = 851.55/x
3. Step 3: Cross multiply
   1,411.06x = 1,946.59 × 851.55
4. Step 4: Simplify right side
   1,411.06x = 1,657,618.71
5. Step 5: Solve for x
   x = 1,657,618.71/1,411.06
6. Step 6: Final answer
   x = 1,174.73