Finding the Fourth Proportional to 1,376.30, 2,061.45 and 847.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.30 : 2,061.45 = 847.59 : x
2. Step 2: Convert to fraction form
   1,376.30/2,061.45 = 847.59/x
3. Step 3: Cross multiply
   1,376.30x = 2,061.45 × 847.59
4. Step 4: Simplify right side
   1,376.30x = 1,747,264.41
5. Step 5: Solve for x
   x = 1,747,264.41/1,376.30
6. Step 6: Final answer
   x = 1,269.54