Finding the Fourth Proportional to 1,941.09, 2,678.69 and 1,056.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.09 : 2,678.69 = 1,056.89 : x
2. Step 2: Convert to fraction form
   1,941.09/2,678.69 = 1,056.89/x
3. Step 3: Cross multiply
   1,941.09x = 2,678.69 × 1,056.89
4. Step 4: Simplify right side
   1,941.09x = 2,831,080.67
5. Step 5: Solve for x
   x = 2,831,080.67/1,941.09
6. Step 6: Final answer
   x = 1,458.50