Finding the Fourth Proportional to 1,326.68, 1,830.73 and 1,012.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,326.68 : 1,830.73 = 1,012.15 : x
2. Step 2: Convert to fraction form
   1,326.68/1,830.73 = 1,012.15/x
3. Step 3: Cross multiply
   1,326.68x = 1,830.73 × 1,012.15
4. Step 4: Simplify right side
   1,326.68x = 1,852,973.37
5. Step 5: Solve for x
   x = 1,852,973.37/1,326.68
6. Step 6: Final answer
   x = 1,396.70