Finding the Fourth Proportional to 1,383.67, 1,908.63 and 1,051.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.67 : 1,908.63 = 1,051.98 : x
2. Step 2: Convert to fraction form
   1,383.67/1,908.63 = 1,051.98/x
3. Step 3: Cross multiply
   1,383.67x = 1,908.63 × 1,051.98
4. Step 4: Simplify right side
   1,383.67x = 2,007,840.59
5. Step 5: Solve for x
   x = 2,007,840.59/1,383.67
6. Step 6: Final answer
   x = 1,451.10