Finding the Fourth Proportional to 1,946.12, 2,685.50 and 1,061.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,946.12 : 2,685.50 = 1,061.90 : x
2. Step 2: Convert to fraction form
   1,946.12/2,685.50 = 1,061.90/x
3. Step 3: Cross multiply
   1,946.12x = 2,685.50 × 1,061.90
4. Step 4: Simplify right side
   1,946.12x = 2,851,741.82
5. Step 5: Solve for x
   x = 2,851,741.82/1,946.12
6. Step 6: Final answer
   x = 1,465.35