Finding the Fourth Proportional to 1,122,588.37, 1,683,113.96 and 402,914.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,122,588.37 : 1,683,113.96 = 402,914.10 : x
2. Step 2: Convert to fraction form
   1,122,588.37/1,683,113.96 = 402,914.10/x
3. Step 3: Cross multiply
   1,122,588.37x = 1,683,113.96 × 402,914.10
4. Step 4: Simplify right side
   1,122,588.37x = 678,150,347,398.12
5. Step 5: Solve for x
   x = 678,150,347,398.12/1,122,588.37
6. Step 6: Final answer
   x = 604,095.29