Finding the Fourth Proportional to 1,411,705.98, 2,116,368.42 and 612,385.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411,705.98 : 2,116,368.42 = 612,385.38 : x
2. Step 2: Convert to fraction form
   1,411,705.98/2,116,368.42 = 612,385.38/x
3. Step 3: Cross multiply
   1,411,705.98x = 2,116,368.42 × 612,385.38
4. Step 4: Simplify right side
   1,411,705.98x = 1,296,033,079,101.70
5. Step 5: Solve for x
   x = 1,296,033,079,101.70/1,411,705.98
6. Step 6: Final answer
   x = 918,061.62