Finding the Fourth Proportional to 2,507.73, 3,761.63 and 947.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.73 : 3,761.63 = 947.86 : x
2. Step 2: Convert to fraction form
   2,507.73/3,761.63 = 947.86/x
3. Step 3: Cross multiply
   2,507.73x = 3,761.63 × 947.86
4. Step 4: Simplify right side
   2,507.73x = 3,565,498.61
5. Step 5: Solve for x
   x = 3,565,498.61/2,507.73
6. Step 6: Final answer
   x = 1,421.80