Finding the Fourth Proportional to 2,795.30, 4,191.89 and 1,128.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,795.30 : 4,191.89 = 1,128.86 : x
2. Step 2: Convert to fraction form
   2,795.30/4,191.89 = 1,128.86/x
3. Step 3: Cross multiply
   2,795.30x = 4,191.89 × 1,128.86
4. Step 4: Simplify right side
   2,795.30x = 4,732,030.34
5. Step 5: Solve for x
   x = 4,732,030.34/2,795.30
6. Step 6: Final answer
   x = 1,692.86