Finding the Fourth Proportional to 1,383.90, 1,910.01 and 1,051.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.90 : 1,910.01 = 1,051.80 : x
2. Step 2: Convert to fraction form
   1,383.90/1,910.01 = 1,051.80/x
3. Step 3: Cross multiply
   1,383.90x = 1,910.01 × 1,051.80
4. Step 4: Simplify right side
   1,383.90x = 2,008,948.52
5. Step 5: Solve for x
   x = 2,008,948.52/1,383.90
6. Step 6: Final answer
   x = 1,451.66