Finding the Fourth Proportional to 1,349.61, 1,856.60 and 1,100.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.61 : 1,856.60 = 1,100.38 : x
2. Step 2: Convert to fraction form
   1,349.61/1,856.60 = 1,100.38/x
3. Step 3: Cross multiply
   1,349.61x = 1,856.60 × 1,100.38
4. Step 4: Simplify right side
   1,349.61x = 2,042,965.51
5. Step 5: Solve for x
   x = 2,042,965.51/1,349.61
6. Step 6: Final answer
   x = 1,513.75