Finding the Fourth Proportional to 1,931.68, 2,664.72 and 1,342.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.68 : 2,664.72 = 1,342.72 : x
2. Step 2: Convert to fraction form
   1,931.68/2,664.72 = 1,342.72/x
3. Step 3: Cross multiply
   1,931.68x = 2,664.72 × 1,342.72
4. Step 4: Simplify right side
   1,931.68x = 3,577,972.84
5. Step 5: Solve for x
   x = 3,577,972.84/1,931.68
6. Step 6: Final answer
   x = 1,852.26