Finding the Fourth Proportional to 1,736.32, 2,601.69 and 1,387.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.32 : 2,601.69 = 1,387.84 : x
2. Step 2: Convert to fraction form
   1,736.32/2,601.69 = 1,387.84/x
3. Step 3: Cross multiply
   1,736.32x = 2,601.69 × 1,387.84
4. Step 4: Simplify right side
   1,736.32x = 3,610,729.45
5. Step 5: Solve for x
   x = 3,610,729.45/1,736.32
6. Step 6: Final answer
   x = 2,079.53