Finding the Fourth Proportional to 1,886.20, 2,602.06 and 1,100.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.20 : 2,602.06 = 1,100.10 : x
2. Step 2: Convert to fraction form
   1,886.20/2,602.06 = 1,100.10/x
3. Step 3: Cross multiply
   1,886.20x = 2,602.06 × 1,100.10
4. Step 4: Simplify right side
   1,886.20x = 2,862,526.21
5. Step 5: Solve for x
   x = 2,862,526.21/1,886.20
6. Step 6: Final answer
   x = 1,517.62