Finding the Fourth Proportional to 2,373.06, 3,275.52 and 1,378.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,373.06 : 3,275.52 = 1,378.78 : x
2. Step 2: Convert to fraction form
   2,373.06/3,275.52 = 1,378.78/x
3. Step 3: Cross multiply
   2,373.06x = 3,275.52 × 1,378.78
4. Step 4: Simplify right side
   2,373.06x = 4,516,221.47
5. Step 5: Solve for x
   x = 4,516,221.47/2,373.06
6. Step 6: Final answer
   x = 1,903.12