Finding the Fourth Proportional to 1,367.07, 1,886.52 and 777.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.07 : 1,886.52 = 777.66 : x
2. Step 2: Convert to fraction form
   1,367.07/1,886.52 = 777.66/x
3. Step 3: Cross multiply
   1,367.07x = 1,886.52 × 777.66
4. Step 4: Simplify right side
   1,367.07x = 1,467,061.71
5. Step 5: Solve for x
   x = 1,467,061.71/1,367.07
6. Step 6: Final answer
   x = 1,073.15