Finding the Fourth Proportional to 1,061,575.48, 1,590,944.50 and 387,023.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,575.48 : 1,590,944.50 = 387,023.14 : x
2. Step 2: Convert to fraction form
   1,061,575.48/1,590,944.50 = 387,023.14/x
3. Step 3: Cross multiply
   1,061,575.48x = 1,590,944.50 × 387,023.14
4. Step 4: Simplify right side
   1,061,575.48x = 615,732,335,955.73
5. Step 5: Solve for x
   x = 615,732,335,955.73/1,061,575.48
6. Step 6: Final answer
   x = 580,017.48