Finding the Fourth Proportional to 1,341.30, 1,851.62 and 1,009.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.30 : 1,851.62 = 1,009.86 : x
2. Step 2: Convert to fraction form
   1,341.30/1,851.62 = 1,009.86/x
3. Step 3: Cross multiply
   1,341.30x = 1,851.62 × 1,009.86
4. Step 4: Simplify right side
   1,341.30x = 1,869,876.97
5. Step 5: Solve for x
   x = 1,869,876.97/1,341.30
6. Step 6: Final answer
   x = 1,394.08