Finding the Fourth Proportional to 1,900,667.62, 2,850,999.50 and 763,430.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900,667.62 : 2,850,999.50 = 763,430.05 : x
2. Step 2: Convert to fraction form
   1,900,667.62/2,850,999.50 = 763,430.05/x
3. Step 3: Cross multiply
   1,900,667.62x = 2,850,999.50 × 763,430.05
4. Step 4: Simplify right side
   1,900,667.62x = 2,176,538,672,762.83
5. Step 5: Solve for x
   x = 2,176,538,672,762.83/1,900,667.62
6. Step 6: Final answer
   x = 1,145,144.29