Finding the Fourth Proportional to 1,027,878.18, 1,418,475.15 and 556,385.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,027,878.18 : 1,418,475.15 = 556,385.82 : x
2. Step 2: Convert to fraction form
   1,027,878.18/1,418,475.15 = 556,385.82/x
3. Step 3: Cross multiply
   1,027,878.18x = 1,418,475.15 × 556,385.82
4. Step 4: Simplify right side
   1,027,878.18x = 789,219,459,482.37
5. Step 5: Solve for x
   x = 789,219,459,482.37/1,027,878.18
6. Step 6: Final answer
   x = 767,814.20