Finding the Fourth Proportional to 1,097,647.50, 1,514,715.48 and 607,638.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,647.50 : 1,514,715.48 = 607,638.30 : x
2. Step 2: Convert to fraction form
   1,097,647.50/1,514,715.48 = 607,638.30/x
3. Step 3: Cross multiply
   1,097,647.50x = 1,514,715.48 × 607,638.30
4. Step 4: Simplify right side
   1,097,647.50x = 920,399,139,250.88
5. Step 5: Solve for x
   x = 920,399,139,250.88/1,097,647.50
6. Step 6: Final answer
   x = 838,519.78