Finding the Fourth Proportional to 1,100.06, 1,646.15 and 955.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.06 : 1,646.15 = 955.51 : x
2. Step 2: Convert to fraction form
   1,100.06/1,646.15 = 955.51/x
3. Step 3: Cross multiply
   1,100.06x = 1,646.15 × 955.51
4. Step 4: Simplify right side
   1,100.06x = 1,572,916.59
5. Step 5: Solve for x
   x = 1,572,916.59/1,100.06
6. Step 6: Final answer
   x = 1,429.85