Finding the Fourth Proportional to 1,122,705.34, 1,549,315.29 and 613,396.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,122,705.34 : 1,549,315.29 = 613,396.78 : x
2. Step 2: Convert to fraction form
   1,122,705.34/1,549,315.29 = 613,396.78/x
3. Step 3: Cross multiply
   1,122,705.34x = 1,549,315.29 × 613,396.78
4. Step 4: Simplify right side
   1,122,705.34x = 950,345,010,090.77
5. Step 5: Solve for x
   x = 950,345,010,090.77/1,122,705.34
6. Step 6: Final answer
   x = 846,477.68