Finding the Fourth Proportional to 1,152,361.73, 1,590,302.49 and 643,162.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,361.73 : 1,590,302.49 = 643,162.52 : x
2. Step 2: Convert to fraction form
   1,152,361.73/1,590,302.49 = 643,162.52/x
3. Step 3: Cross multiply
   1,152,361.73x = 1,590,302.49 × 643,162.52
4. Step 4: Simplify right side
   1,152,361.73x = 1,022,822,957,030.67
5. Step 5: Solve for x
   x = 1,022,822,957,030.67/1,152,361.73
6. Step 6: Final answer
   x = 887,588.45