Finding the Fourth Proportional to 2,127,128.32, 3,191,314.56 and 631,259.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127,128.32 : 3,191,314.56 = 631,259.20 : x
2. Step 2: Convert to fraction form
   2,127,128.32/3,191,314.56 = 631,259.20/x
3. Step 3: Cross multiply
   2,127,128.32x = 3,191,314.56 × 631,259.20
4. Step 4: Simplify right side
   2,127,128.32x = 2,014,546,676,093.95
5. Step 5: Solve for x
   x = 2,014,546,676,093.95/2,127,128.32
6. Step 6: Final answer
   x = 947,073.41