Finding the Fourth Proportional to 1,011,515.42, 1,517,491.83 and 538,131.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,515.42 : 1,517,491.83 = 538,131.98 : x
2. Step 2: Convert to fraction form
   1,011,515.42/1,517,491.83 = 538,131.98/x
3. Step 3: Cross multiply
   1,011,515.42x = 1,517,491.83 × 538,131.98
4. Step 4: Simplify right side
   1,011,515.42x = 816,610,883,111.72
5. Step 5: Solve for x
   x = 816,610,883,111.72/1,011,515.42
6. Step 6: Final answer
   x = 807,314.32