Finding the Fourth Proportional to 1,154,443.86, 1,592,994.51 and 638,127.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154,443.86 : 1,592,994.51 = 638,127.99 : x
2. Step 2: Convert to fraction form
   1,154,443.86/1,592,994.51 = 638,127.99/x
3. Step 3: Cross multiply
   1,154,443.86x = 1,592,994.51 × 638,127.99
4. Step 4: Simplify right side
   1,154,443.86x = 1,016,534,384,747.33
5. Step 5: Solve for x
   x = 1,016,534,384,747.33/1,154,443.86
6. Step 6: Final answer
   x = 880,540.34