Finding the Fourth Proportional to 1,282.06, 1,913.72 and 1,100.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.06 : 1,913.72 = 1,100.62 : x
2. Step 2: Convert to fraction form
   1,282.06/1,913.72 = 1,100.62/x
3. Step 3: Cross multiply
   1,282.06x = 1,913.72 × 1,100.62
4. Step 4: Simplify right side
   1,282.06x = 2,106,278.51
5. Step 5: Solve for x
   x = 2,106,278.51/1,282.06
6. Step 6: Final answer
   x = 1,642.89