Finding the Fourth Proportional to 1,360.80, 2,038.96 and 846.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.80 : 2,038.96 = 846.72 : x
2. Step 2: Convert to fraction form
   1,360.80/2,038.96 = 846.72/x
3. Step 3: Cross multiply
   1,360.80x = 2,038.96 × 846.72
4. Step 4: Simplify right side
   1,360.80x = 1,726,428.21
5. Step 5: Solve for x
   x = 1,726,428.21/1,360.80
6. Step 6: Final answer
   x = 1,268.69