Finding the Fourth Proportional to 2,526.72, 3,486.82 and 1,407.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.72 : 3,486.82 = 1,407.62 : x
2. Step 2: Convert to fraction form
   2,526.72/3,486.82 = 1,407.62/x
3. Step 3: Cross multiply
   2,526.72x = 3,486.82 × 1,407.62
4. Step 4: Simplify right side
   2,526.72x = 4,908,117.57
5. Step 5: Solve for x
   x = 4,908,117.57/2,526.72
6. Step 6: Final answer
   x = 1,942.49