Finding the Fourth Proportional to 970,111.56, 1,338,576.30 and 540,381

Step by Step Solution

1. Step 1: Write the proportion equation
   970,111.56 : 1,338,576.30 = 540,381 : x
2. Step 2: Convert to fraction form
   970,111.56/1,338,576.30 = 540,381/x
3. Step 3: Cross multiply
   970,111.56x = 1,338,576.30 × 540,381
4. Step 4: Simplify right side
   970,111.56x = 723,341,199,570.30
5. Step 5: Solve for x
   x = 723,341,199,570.30/970,111.56
6. Step 6: Final answer
   x = 745,626.82