Finding the Fourth Proportional to 1,382.59, 1,907.89 and 761.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.59 : 1,907.89 = 761.59 : x
2. Step 2: Convert to fraction form
   1,382.59/1,907.89 = 761.59/x
3. Step 3: Cross multiply
   1,382.59x = 1,907.89 × 761.59
4. Step 4: Simplify right side
   1,382.59x = 1,453,029.95
5. Step 5: Solve for x
   x = 1,453,029.95/1,382.59
6. Step 6: Final answer
   x = 1,050.95