Finding the Fourth Proportional to 1,147,111.37, 1,720,555.12 and 348,399.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147,111.37 : 1,720,555.12 = 348,399.83 : x
2. Step 2: Convert to fraction form
   1,147,111.37/1,720,555.12 = 348,399.83/x
3. Step 3: Cross multiply
   1,147,111.37x = 1,720,555.12 × 348,399.83
4. Step 4: Simplify right side
   1,147,111.37x = 599,441,116,050.52
5. Step 5: Solve for x
   x = 599,441,116,050.52/1,147,111.37
6. Step 6: Final answer
   x = 522,565.75