Finding the Fourth Proportional to 1,928.93, 2,890.83 and 1,051.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.93 : 2,890.83 = 1,051.43 : x
2. Step 2: Convert to fraction form
   1,928.93/2,890.83 = 1,051.43/x
3. Step 3: Cross multiply
   1,928.93x = 2,890.83 × 1,051.43
4. Step 4: Simplify right side
   1,928.93x = 3,039,505.39
5. Step 5: Solve for x
   x = 3,039,505.39/1,928.93
6. Step 6: Final answer
   x = 1,575.75