Finding the Fourth Proportional to 1,359.05, 1,873.98 and 1,026.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.05 : 1,873.98 = 1,026.86 : x
2. Step 2: Convert to fraction form
   1,359.05/1,873.98 = 1,026.86/x
3. Step 3: Cross multiply
   1,359.05x = 1,873.98 × 1,026.86
4. Step 4: Simplify right side
   1,359.05x = 1,924,305.73
5. Step 5: Solve for x
   x = 1,924,305.73/1,359.05
6. Step 6: Final answer
   x = 1,415.92