Finding the Fourth Proportional to 1,919,196.51, 2,878,798.40 and 499,250.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,196.51 : 2,878,798.40 = 499,250.31 : x
2. Step 2: Convert to fraction form
   1,919,196.51/2,878,798.40 = 499,250.31/x
3. Step 3: Cross multiply
   1,919,196.51x = 2,878,798.40 × 499,250.31
4. Step 4: Simplify right side
   1,919,196.51x = 1,437,240,993,627.50
5. Step 5: Solve for x
   x = 1,437,240,993,627.50/1,919,196.51
6. Step 6: Final answer
   x = 748,876.41