Finding the Fourth Proportional to 1,155,039.53, 1,724,099.34 and 1,018,687.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,039.53 : 1,724,099.34 = 1,018,687.37 : x
2. Step 2: Convert to fraction form
   1,155,039.53/1,724,099.34 = 1,018,687.37/x
3. Step 3: Cross multiply
   1,155,039.53x = 1,724,099.34 × 1,018,687.37
4. Step 4: Simplify right side
   1,155,039.53x = 1,756,318,222,283.34
5. Step 5: Solve for x
   x = 1,756,318,222,283.34/1,155,039.53
6. Step 6: Final answer
   x = 1,520,569.80