Finding the Fourth Proportional to 1,926.93, 2,659.15 and 1,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.93 : 2,659.15 = 1,042.72 : x
2. Step 2: Convert to fraction form
   1,926.93/2,659.15 = 1,042.72/x
3. Step 3: Cross multiply
   1,926.93x = 2,659.15 × 1,042.72
4. Step 4: Simplify right side
   1,926.93x = 2,772,748.89
5. Step 5: Solve for x
   x = 2,772,748.89/1,926.93
6. Step 6: Final answer
   x = 1,438.95